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Communications and Networks, Journal of

Issue 4 • Date Aug. 2013

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Displaying Results 1 - 19 of 19
  • Effects of channel aging in massive MIMO systems

    Publication Year: 2013 , Page(s): 338 - 351
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (522 KB) |  | HTML iconHTML  

    Multiple-input multiple-output (MIMO) communication may provide high spectral efficiency through the deployment of a very large number of antenna elements at the base stations. The gains from massive MIMO communication come from the use of multiuser MIMO on the uplink and downlink, but with a large excess of antennas at the base station compared to the number of served users. Initial work on massi... View full abstract»

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  • A channel state information feedback method for massive MIMO-OFDM

    Publication Year: 2013 , Page(s): 352 - 361
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1597 KB) |  | HTML iconHTML  

    Combining multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) with a massive number of transmit antennas (massive MIMO-OFDM) is an attractive way of increasing the spectrum efficiency or reducing the transmission energy per bit. The effectiveness of Massive MIMO-OFDM is strongly affected by the channel state information (CSI) estimation method used. The overheads ... View full abstract»

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  • Optimal number of users in zero-forcing based multiuser MIMO systems with large number of antennas

    Publication Year: 2013 , Page(s): 362 - 369
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (526 KB) |  | HTML iconHTML  

    The optimal number of users achieving the maximum sum throughput is analyzed in zero-forcing (ZF) based multiuser multiple-input multiple-output (MIMO) systems with a large number of base station (BS) antennas. By utilizing deterministic ergodic sum rates for the ZF-beamforming (ZF-BF) and ZF-receiver (ZF-R) with a large number of BS antennas [1], [2], we can obtain the ergodic sum throughputs for... View full abstract»

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  • Low complexity zero-forcing beamforming for distributed massive MIMO systems in large public venues

    Publication Year: 2013 , Page(s): 370 - 382
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (660 KB) |  | HTML iconHTML  

    Distributed massive MIMO systems, which have high bandwidth efficiency and can accommodate a tremendous amount of traffic using algorithms such as zero-forcing beamforming (ZFBF), may be deployed in large public venues with the antennas mounted under-floor. In this case the channel gain matrix H can be modeled as a multi-banded matrix, in which off-diagonal entries decay both exponentially due to ... View full abstract»

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  • Widely-linear beamforming and RF impairment suppression in massive antenna arrays

    Publication Year: 2013 , Page(s): 383 - 397
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (7096 KB) |  | HTML iconHTML  

    In this paper, the sensitivity of massive antenna arrays and digital beamforming to radio frequency (RF) chain in-phase quadrature-phase (I/Q) imbalance is studied and analyzed. The analysis shows that massive antenna arrays are increasingly sensitive to such RF chain imperfections, corrupting heavily the radiation pattern and beamforming capabilities. Motivated by this, novel RF-aware digital bea... View full abstract»

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  • Before/after precoding massive MIMO systems for cloud radio access networks

    Publication Year: 2013 , Page(s): 398 - 406
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2298 KB) |  | HTML iconHTML  

    In this paper, we investigate two types of in-phase and quadrature-phase (IQ) data transfer methods for cloud multiple-input multiple-output (MIMO) network operation. They are termed “after-precoding” and “before-precoding”. We formulate a cloud massive MIMO operation problem that aims at selecting the best IQ data transfer method and transmission strategy (beamforming ... View full abstract»

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  • A label graph based verifiable secret sharing scheme for general access structures

    Publication Year: 2013 , Page(s): 407 - 410
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (150 KB) |  | HTML iconHTML  

    Secret sharing is that a dealer distributes a piece of information (called a share) about a secret to each participant such that authorized subsets of participants can reconstruct the secret but unauthorized subsets of participants cannot determine the secret. In this paper, an access structure can be represented by a label graph G, where a vertex denotes a participant and a complete subgraph of G... View full abstract»

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  • A new iterative LT decoding algorithm for binary and nonbinary Galois fields

    Publication Year: 2013 , Page(s): 411 - 421
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (626 KB) |  | HTML iconHTML  

    Digital fountain codes are record-breaking codes for erasure channels. They have many potential applications in both wired and wireless communications. Most existing digital fountain codes operate over binary fields using an iterative belief-propagation (BP) decoding algorithm. In this paper, we propose a new iterative decoding algorithm for both binary and nonbinary fields. The basic form of our ... View full abstract»

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  • Efficient and secure routing protocol for wireless sensor networks through SNR based dynamic clustering mechanisms

    Publication Year: 2013 , Page(s): 422 - 429
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (354 KB) |  | HTML iconHTML  

    Advances in wireless sensor network (WSN) technology have enabled small and low-cost sensors with the capability of sensing various types of physical and environmental conditions, data processing, and wireless communication. In the WSN, the sensor nodes have a limited transmission range and their processing and storage capabilities as well as their energy resources are limited. A triple umpiring s... View full abstract»

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  • Throughput-delay analysis of one-to-many wireless multi-hop flows based on random linear network coding

    Publication Year: 2013 , Page(s): 430 - 438
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (493 KB) |  | HTML iconHTML  

    This paper addresses the issue of throughput-delay of one-to-many wireless multi-hop flows based on random linear network coding (RLNC). Existing research results have been focusing on the single-hop model which is not suitable for wireless multi-hop networks. In addition, the conditions of related system model are too idealistic. To address these limitations, we herein investigate the performance... View full abstract»

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  • [Advertisement]

    Publication Year: 2013 , Page(s): 1
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  • Call for papers

    Publication Year: 2013 , Page(s): 1
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  • Call for papers

    Publication Year: 2013 , Page(s): 1
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    Freely Available from IEEE
  • Journal of Communications and Networks - Copyright transfer form

    Publication Year: 2013 , Page(s): 1
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    Freely Available from IEEE
  • [Front cover]

    Publication Year: 2013 , Page(s): c1
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    Freely Available from IEEE
  • [Back cover]

    Publication Year: 2013 , Page(s): c4
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  • Special issue on Massive MIMO

    Publication Year: 2013 , Page(s): 333 - 337
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (487 KB) |  | HTML iconHTML  

    Demand for wireless communications is projected to grow by more than a factor of forty or more over the next five years. A potential technology for meeting this demand is Massive MIMO (also called Large-Scale Antenna Systems, Large-Scale MIMO, ARGOS, Full-Dimension MIMO, or Hyper-MIMO), a form of multiuser multipleantenna wireless which promises orders-of-magnitude improvements in spectral-efficie... View full abstract»

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  • [Front inside cover]

    Publication Year: 2013 , Page(s): c2
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    Freely Available from IEEE
  • [Back inside cover]

    Publication Year: 2013 , Page(s): c3
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Aims & Scope

The Journal of Communications and Networks is published six times per year, and is committed to publishing high-quality papers that advance the state-of-the-art and practical applications of communications and information networks.

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Meet Our Editors

Editor-in-Chief
H. Vincent Poor
Princeton University