On Performance of Cooperative Communication Systems with Spatial Random Relays

Cooperative communications can significantly enhance the performance of wireless systems by exploiting the inherent spatial diversity gains. In this work, a decode-and-forward cooperative cellular system with spatial random users is investigated. Under a realistic channel model including path loss,...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on communications 2011-04, Vol.59 (4), p.1190-1199
Main Authors: Wang, Hongzheng, Ma, Shaodan, Ng, Tung-Sang
Format: Article
Language:English
Subjects:
Access methods and protocols, osi model
Allocations
Applied sciences
Approximation methods
AWGN
Base stations
Channel models
Channels
Communication systems
Computer simulation
Cooperative communications
Detection, estimation, filtering, equalization, prediction
Equipments and installations
Error detection
Exact sciences and technology
Gain
Information, signal and communications theory
Mathematical analysis
Mathematical models
Mobile radiocommunication systems
multipath fading
outage probability
path loss
Poisson process
Radiocommunications
Relays
Shadow mapping
shadowing
Signal and communications theory
Signal to noise ratio
Signal, noise
Studies
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Transmission and modulation (techniques and equipments)
uniform point process
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Cooperative communications can significantly enhance the performance of wireless systems by exploiting the inherent spatial diversity gains. In this work, a decode-and-forward cooperative cellular system with spatial random users is investigated. Under a realistic channel model including path loss, shadowing and multipath fading, the users are selected as relays depending on their instantaneous SNR so that error propagation caused by detection errors at the relays can be mitigated. The locations of users are modeled as random point processes. Based on the theory of point processes, an analytic approach to system performance is developed to accommodate the random location of users as well as the underlying channel. The locations of the selected relays are investigated and the outage performance averaging over all possible user locations is analyzed. The accuracy of the analytical results is verified by Monte-Carlo simulations. Various issues, such as power allocation, are also investigated using the numerical results.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2011.012711.090285A