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IEEE Journal of Selected Topics in Signal Processing

Issue 1 • Date Feb. 2008

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Displaying Results 1 - 16 of 16
  • Table of contents

    Publication Year: 2008, Page(s): C1
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  • IEEE Journal of Selected Topics in Signal Processing publication information

    Publication Year: 2008, Page(s): C2
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  • Introduction to the Issue on Signal Processing and Networking for Dynamic Spectrum Access

    Publication Year: 2008, Page(s):1 - 3
    Cited by:  Papers (2)
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  • SNR Walls for Signal Detection

    Publication Year: 2008, Page(s):4 - 17
    Cited by:  Papers (612)  |  Patents (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1122 KB) | HTML iconHTML

    This paper considers the detection of the presence/absence of signals in uncertain low SNR environments. Small modeling uncertainties are unavoidable in any practical system and so robustness to them is a fundamental performance metric. The impact of these modeling uncertainties can be quantified by the position of the "SNR wall" below which a detector will fail to be robust, no matter how long it... View full abstract»

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  • Cooperative Sensing for Primary Detection in Cognitive Radio

    Publication Year: 2008, Page(s):18 - 27
    Cited by:  Papers (278)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (633 KB) | HTML iconHTML

    One of the main requirements of cognitive radio systems is the ability to reliably detect the presence of licensed primary transmissions. Previous works on the problem of detection for cognitive radio have suggested the necessity of user cooperation in order to be able to detect at the low signal-to-noise ratios experienced in practical situations. We consider a system of cognitive radio users who... View full abstract»

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  • Optimal Linear Cooperation for Spectrum Sensing in Cognitive Radio Networks

    Publication Year: 2008, Page(s):28 - 40
    Cited by:  Papers (544)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB) | HTML iconHTML

    Cognitive radio technology has been proposed to improve spectrum efficiency by having the cognitive radios act as secondary users to opportunistically access under-utilized frequency bands. Spectrum sensing, as a key enabling functionality in cognitive radio networks, needs to reliably detect signals from licensed primary radios to avoid harmful interference. However, due to the effects of channel... View full abstract»

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  • Interference Aggregation in Spectrum-Sensing Cognitive Wireless Networks

    Publication Year: 2008, Page(s):41 - 56
    Cited by:  Papers (159)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1108 KB) | HTML iconHTML

    The increasing demand for the radio spectrum along with the inefficient usage of the licensed bands has led the regulatory bodies to consider opening up the under-utilized licensed frequency bands for dynamic access by unlicensed users. Such dynamic spectrum access is envisioned to resolve the spectrum scarcity by allowing unlicensed users to opportunistically utilize the white spaces across the l... View full abstract»

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  • Dynamic Spectrum Management: Complexity and Duality

    Publication Year: 2008, Page(s):57 - 73
    Cited by:  Papers (300)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (539 KB) | HTML iconHTML

    Consider a communication system whereby multiple users share a common frequency band and must choose their transmit power spectral densities dynamically in response to physical channel conditions. Due to co-channel interference, the achievable data rate of each user depends on not only the power spectral density of its own, but also those of others in the system. Given any channel condition and as... View full abstract»

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  • Price-Based Spectrum Management in Cognitive Radio Networks

    Publication Year: 2008, Page(s):74 - 87
    Cited by:  Papers (127)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (960 KB) | HTML iconHTML

    Cognitive radios (CRs) have a great potential to improve spectrum utilization by enabling users to access the spectrum dynamically without disturbing licensed primary radios (PRs). A key challenge in operating these radios as a network is how to implement an efficient medium access control (MAC) mechanism that can adaptively and efficiently allocate transmission powers and spectrum among CRs accor... View full abstract»

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  • Exploiting Multi-Antennas for Opportunistic Spectrum Sharing in Cognitive Radio Networks

    Publication Year: 2008, Page(s):88 - 102
    Cited by:  Papers (400)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB) | HTML iconHTML

    In cognitive radio (CR) networks, there are scenarios where the secondary (lower priority) users intend to communicate with each other by opportunistically utilizing the transmit spectrum originally allocated to the existing primary (higher priority) users. For such a scenario, a secondary user usually has to tradeoff between two conflicting goals at the same time: one is to maximize its own trans... View full abstract»

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  • On the Capacity of a Class of MIMO Cognitive Radios

    Publication Year: 2008, Page(s):103 - 117
    Cited by:  Papers (67)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (733 KB) | HTML iconHTML

    Cognitive radios have been studied recently as a means to utilize spectrum in a more efficient manner. This paper focuses on the fundamental limits of operation of a MIMO cognitive radio network with a single licensed user and a single cognitive user. The channel setting is equivalent to an interference channel with degraded message sets (with the cognitive user having access to the licensed user'... View full abstract»

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  • IEEE Journal of Selected Topics in Signal Processing Information for authors

    Publication Year: 2008, Page(s): 118
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  • Special issue on digital image processing techniques for oncology

    Publication Year: 2008, Page(s): 119
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  • Special issue on visual media quality assessment

    Publication Year: 2008, Page(s): 120
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  • IEEE Signal Processing Society Information

    Publication Year: 2008, Page(s): C3
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  • Blank page [back cover]

    Publication Year: 2008, Page(s): C4
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Aims & Scope

The Journal of Selected Topics in Signal Processing (J-STSP) solicits special issues on topics that cover the entire scope of the IEEE Signal Processing Society including the theory and application of filtering, coding, transmitting, estimating, detecting, analyzing, recognizing, synthesizing, recording, and reproducing signals by digital or analog devices or techniques.

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Meet Our Editors

Editor-in-Chief

Shrikanth (Shri) S. Narayanan
Viterbi School of Engineering 
University of Southern California
Los Angeles, CA 90089 USA
shri@sipi.usc.edu