# IEEE Transactions on Communications

## Filter Results

Displaying Results 1 - 25 of 37

Publication Year: 2017, Page(s):C1 - C4
| |PDF (316 KB)
• ### IEEE Communications Society

Publication Year: 2017, Page(s): C2
| |PDF (94 KB)
• ### Efficient ADMM Decoding of LDPC Codes Using Lookup Tables

Publication Year: 2017, Page(s):1425 - 1437
| |PDF (2146 KB) | HTML

Linear programming decoding with the alternating direction method of multipliers (ADMM) is a promising decoding technique for low-density parity-check (LDPC) codes, where the computational complexity of Euclidean projections onto check polytopes becomes a prominent problem. In this paper, the problem is circumvented by building lookup tables (LUTs) and quantizing the inputs to approach approximate... View full abstract»

• ### On Nonuniform Noisy Decoding for LDPC Codes With Application to Radiation-Induced Errors

Publication Year: 2017, Page(s):1438 - 1450
| |PDF (1983 KB) | HTML

Recent studies on noisy decoding for LDPC codes rely on the assumption that the noise in each component is independent and perpetual. This paper examines a noisy decoding model that generalizes this approach: the noise is due to multi-state channels, where the channel states are governed by queue-like processes. This model is inspired by errors in decoders that are due to the high levels of radiat... View full abstract»

• ### Optimizing Cooperative Cognitive Radio Networks Performance With Primary QoS Provisioning

Publication Year: 2017, Page(s):1451 - 1463
| |PDF (1677 KB) | HTML

We consider the problem of optimizing the performance of a cooperative cognitive radio user subject to constraints on the quality-of-service (QoS) of the primary user (PU). In particular, we design the probabilistic admission control parameter of the PU packets in the secondary user (SU) relaying queue and the randomized service parameter at the SU under non-work-conserving (non-WC) and WC coopera... View full abstract»

• ### Wireless Powered Cognitive Radio Networks With Compressive Sensing and Matrix Completion

Publication Year: 2017, Page(s):1464 - 1476
Cited by:  Papers (4)
| |PDF (1570 KB) | HTML

In this paper, we consider cognitive radio networks in which energy constrained secondary users (SUs) can harvest energy from the randomly deployed power beacons. A new frame structure is proposed for the considered networks. In the considered network, a wireless power transfer model is proposed, and the closed-form expressions for the power outage probability are derived. In addition, in order to... View full abstract»

• ### Underlay Cognitive Multihop MIMO Networks With and Without Receive Interference Cancellation

Publication Year: 2017, Page(s):1477 - 1493
| |PDF (1582 KB) | HTML

This paper investigates the impact of primary network interference on the performance of cognitive multihop secondary network under various multiple-input multiple-output (MIMO) approaches per hop. Specifically, the cognitive system involves a secondary network with MIMO relays that use the amplify-and-forward protocol, and each of which shares the same spectrum resources of multiple primary users... View full abstract»

• ### Construction and Analysis of Shift-Invariant, Asynchronous-Symmetric Channel-Hopping Sequences for Cognitive Radio Networks

Publication Year: 2017, Page(s):1494 - 1506
Cited by:  Papers (1)
| |PDF (1439 KB) | HTML

Besides designing channel-hopping (CH) sequences, finding good methods of communication rendezvous is important for improving spectral efficiency and alleviating traffic load of cognitive radio (CR) networks. In this paper, new asynchronous-symmetric CH sequences are constructed and their (channel overlap, even-channel-use, and pairwise shift invariance) properties are investigated. Their operatio... View full abstract»

• ### Decoupled Uplink and Downlink in a Wireless System With Buffer-Aided Relaying

Publication Year: 2017, Page(s):1507 - 1517
| |PDF (1756 KB) | HTML

This paper treats a multiuser relay scenario, where multiple user equipments have a two-way communication with a common base station in the presence of a buffer-equipped relay station. Each of the uplink (UL) and downlink (DL) transmission can take place over a direct or over a relayed path. Traditionally, the UL and the DL path of a given two-way link are coupled, that is, either both are direct ... View full abstract»

• ### Performance of Analog Network Coding Based Two-Way EH Relay With Beamforming

Publication Year: 2017, Page(s):1518 - 1535
Cited by:  Papers (1)
| |PDF (1531 KB) | HTML

In this paper, we investigate the performance of an analog network coding based two-way relay system with multiple-antenna source terminals and single-antenna energy harvesting (EH) relay. We consider time-switching relaying protocol to perform EH and information processing at the amplify and forward EH relay. Assuming that the multiple-antenna source with a better link beamforms energy to the rel... View full abstract»

• ### High SNR Error Analysis for Bidirectional Relaying With Physical Layer Network Coding

Publication Year: 2017, Page(s):1536 - 1548
| |PDF (1626 KB) | HTML

We consider a large class of bidirectional relaying scenarios with physical layer network coding, and analytically characterize the relay's error performance in decoding the network-coded combination at high signal-to-noise ratio (SNR). Our analysis applies to scenarios with 1) binary or higher order real/complex modulation, 2) real or complex channel coefficients, and 3) linear or non-linear netw... View full abstract»

• ### An Efficient Power Allocation Scheme for Multirelay Systems With Lossy Intra-Links

Publication Year: 2017, Page(s):1549 - 1560
| |PDF (2615 KB) | HTML

The so-called chief executive officer problem suggests that the source message can be recovered at the destination by merging a set of corrupted replicas forwarded by multiple relays, as long as these replicas are sufficiently correlated with the original message. In this paper, we build on Slepian-Wolf's correlated source coding theorem to design a simple, yet efficient power allocation scheme fo... View full abstract»

• ### Pilot Power Allocation Through User Grouping in Multi-Cell Massive MIMO Systems

Publication Year: 2017, Page(s):1561 - 1574
Cited by:  Papers (1)
| |PDF (1452 KB) | HTML

In this paper, we propose a relative channel estimation error (RCEE) metric, and derive closed-form expressions for its expectation Exprcee and the achievable uplink rate holding for any number of base station antennas M, with the least squares (LS) and minimum mean squared error (MMSE) methods. It is found that RCEE and Exprcee converge to the same constant value when M → ∞, which r... View full abstract»

• ### Hybrid RF-Baseband Precoding for Cooperative Multiuser Massive MIMO Systems With Limited RF Chains

Publication Year: 2017, Page(s):1575 - 1589
Cited by:  Papers (1)
| |PDF (1054 KB) | HTML

Massive multiple-input multiple-output (massive MIMO) has been studied to improve the throughput in cellular communication systems via spatial degrees of freedom and array gain. However, in massive MIMO systems, due to the hardware cost considerations, it is infeasible to install a radio frequency (RF) chain for each antenna. To deploy massive MIMO within reasonable hardware cost, hybrid precoding... View full abstract»

• ### Weighted Sum Rate Maximization in Full-Duplex Multi-User Multi-Cell MIMO Networks

Publication Year: 2017, Page(s):1590 - 1608
Cited by:  Papers (1)
| |PDF (1636 KB) | HTML

In this paper, we focus on a multi-user multi-cell scenario with full-duplex (FD) base-stations and half-duplex (HD) downlink (DL) and uplink (UL) users, where all nodes are equipped with multiple antennas. Our goal is to design filters for weighted sum rate (WSR) maximization whilst taking into consideration the effect of transmitter and receiver distortion. Since WSR problems are non-convex, we ... View full abstract»

• ### On the Performance of Reconfigurable Distributed MIMO in Mobile Networks

Publication Year: 2017, Page(s):1609 - 1622
Cited by:  Papers (1)
| |PDF (974 KB) | HTML

We propose a new distributed Multi-Input Multi-Output (MIMO) architecture for mobile networks, which we refer to as reconfigurable distributed MIMO (RD-MIMO), where the communicating mobile nodes temporarily recruit adjacent nodes to operate as distributed antenna arrays. To best serve the communicating nodes, the node clusters are continuously reconfigured due to the node mobility and varying cha... View full abstract»

• ### Quantization and Feedback of Spatial Covariance Matrix for Massive MIMO Systems With Cascaded Precoding

Publication Year: 2017, Page(s):1623 - 1634
Cited by:  Papers (1)
| |PDF (2041 KB) | HTML

In this paper, we investigate the quantization and the feedback of downlink spatial covariance matrix for massive multiple-input multiple-output (MIMO) systems with cascaded precoding. Massive MIMO has gained a lot of attention recently because of its ability to significantly improve the network performance. To reduce the overhead of downlink channel estimation and uplink feedback in frequency-div... View full abstract»

• ### Multihead Multitrack Detection for Next Generation Magnetic Recording, Part I: Weighted Sum Subtract Joint Detection With ITI Estimation

Publication Year: 2017, Page(s):1635 - 1648
| |PDF (1820 KB) | HTML

Multitrack detection with array-head reading is a promising technique proposed for next generation magnetic storage systems. The multihead multitrack (MHMT) system is characterized by intersymbol interference in the downtrack direction and intertrack interference (ITI) in the crosstrack direction. Constructing the trellis of a MHMT maximum likelihood (ML) detector requires knowledge of the ITI, wh... View full abstract»

• ### Multihead Multitrack Detection for Next Generation Magnetic Recording, Part II: Complexity Reduction — Algorithms and Performance Analysis

Publication Year: 2017, Page(s):1649 - 1661
| |PDF (2220 KB) | HTML

To achieve large storage capacity on magnetic hard disk drives, very high track density is required, causing severe intertrack interference (ITI). Multihead multitrack (MHMT) detection has been proposed to better combat the effects of ITI. Such detection, however, has prohibitive implementation complexity. Reduced-state sequence estimation (RSSE) is a promising technique for significantly reducing... View full abstract»

• ### Detection of Unknown Signals Under Complex Elliptically Symmetric Distributions

Publication Year: 2017, Page(s):1662 - 1674
| |PDF (1488 KB) | HTML

Detection of unknown signals is considered under complex elliptically symmetric (CES) distributions, a wide family that includes several well-known distributions as special cases. We study the detection problem for unknown deterministic signals and random CES signals, both corrupted by CES noise. For detection of unknown deterministic signals, we form the generalized likelihood ratio test and redu... View full abstract»

• ### Markov Chain Model for the Decoding Probability of Sparse Network Coding

Publication Year: 2017, Page(s):1675 - 1685
Cited by:  Papers (3)
| |PDF (1617 KB) | HTML

Random linear network coding has been shown to offer an efficient communication scheme, leveraging a remarkable robustness against packet losses. However, it suffers from a high-computational complexity, and some novel approaches, which follow the same idea, have been recently proposed. One of such solutions is sparse network coding (SNC), where only few packets are combined with each transmission... View full abstract»

• ### Connectivity Properties of Free Diffusion-Based Molecular Nanoscale Communication Networks

Publication Year: 2017, Page(s):1686 - 1695
| |PDF (1117 KB) | HTML

The connectivity properties of nanonetworks that employ free diffusion-based molecular communication are analyzed by constructing a model based on Gilbert's disk graph. In free diffusion-based molecular communication, “path loss” has a different functional form compared with wireless propagation and the scenarios under consideration are not generally limited to 2-D environments as in... View full abstract»

• ### Energy Efficient Optimization for Wireless Virtualized Small Cell Networks With Large-Scale Multiple Antenna

Publication Year: 2017, Page(s):1696 - 1707
Cited by:  Papers (3)
| |PDF (1699 KB) | HTML

Wireless network virtualization is envisioned as a promising framework to provide efficient and customized services for next-generation wireless networks. In wireless virtualized networks (WVNs), limited radio resources are shared among different services providers for providing services to different users with heterogeneous demands. In this paper, we propose a resource allocation scheme for an or... View full abstract»

• ### Optimization of Load Balancing in Hybrid LiFi/RF Networks

Publication Year: 2017, Page(s):1708 - 1720
| |PDF (2142 KB) | HTML

Light fidelity (LiFi) uses light emitting diodes (LEDs) for high-speed wireless communications. Since an LED lamp covers a small area, a LiFi system with multiple access points (APs) can offer a significantly high spatial throughput. However, the spatial distribution of data rates achieved by LiFi fluctuates because users experience inter-cell interference from neighboring LiFi APs. In order to gu... View full abstract»

• ### Performance Analysis of $f$ -Cast Crosstalk-Free Optical Banyan Networks

Publication Year: 2017, Page(s):1721 - 1732
| |PDF (2847 KB) | HTML

Banyan networks serve as a class of important switching network architecture, whose multicast capability is critical for future high-performance switches to support multicast-intensive applications. The available literature indicates that, in order to construct optical multicast banyan networks based on the directional coupler (DC) technology, a high-hardware cost is usually involved to ensure the... View full abstract»

## Aims & Scope

IEEE Transactions on Communications focuses on all telecommunications including telephone, telegraphy, facsimile, and point-to-point television by electromagnetic propagation.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Naofal Al-Dhahir
University of Texas at Dallas