A General Analytical Approach for Opportunistic Cooperative Systems with Spatially Random Relays

This paper investigates an opportunistic cooperative system with multiple relays. The locations of the relays are essentially random due to their unpredictable mobility and are thus assumed to form a spatial Poisson process. A general analytical approach to performance analysis is developed to accom...

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Bibliographic Details
Published in:IEEE transactions on wireless communications 2011-12, Vol.10 (12), p.4122-4129
Main Authors: Hongzheng Wang, Shaodan Ma, Tung-Sang Ng, Poor, H. Vincent
Format: Article
Language:English
Subjects:
Applied sciences
Channels
Computer simulation
Cooperative systems
Criteria
Diversity reception
Exact sciences and technology
Mathematical analysis
Monte Carlo methods
Opportunistic cooperation
outage probability
Outages
Poisson process
Probability density function
Random variables
relay selection
Relays
Signal to noise ratio
Simulation
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Wireless communication
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Summary:This paper investigates an opportunistic cooperative system with multiple relays. The locations of the relays are essentially random due to their unpredictable mobility and are thus assumed to form a spatial Poisson process. A general analytical approach to performance analysis is developed to accommodate the randomness of the locations as well as the underlying channels. The outage probability of the system is derived based on the theory of point processes. In particular, two relay selection criteria, namely the best forward channel selection and the best worse channel selection, are used as examples to illustrate the proposed approach. The accuracy of the analytical results is verified by Monte-Carlo simulations with various system configurations.
ISSN:1536-1276
1558-2248
DOI:10.1109/TWC.2011.093011.101386