DocumentCode :
3600836
Title :
Cooperative Relaying Under Spatially and Temporally Correlated Interference
Author :
Crismani, Alessandro ; Toumpis, Stavros ; Schilcher, Udo ; Brandner, Gunther ; Bettstetter, Christian
Author_Institution :
Mobile Syst. Group, Univ. of Klagenfurt, Klagenfurt, Austria
Volume :
64
Issue :
10
fYear :
2015
Firstpage :
4655
Lastpage :
4669
Abstract :
We analyze the performance of an interference-limited decode-and-forward cooperative relaying system that comprises a source, a destination, and N relays, arbitrarily placed on the plane and suffering from interference by a set of interferers placed according to a spatial Poisson process. In each transmission attempt, first, the transmitter sends a packet; subsequently, a single one of the relays that received the packet correctly, if such a relay exists, retransmits it. We consider both selection combining and maximal ratio combining at the destination, Rayleigh fading, and interferer mobility. We derive expressions for the probability that a single transmission attempt is successful, as well as for the distribution of the transmission attempts until a packet is successfully transmitted. Results provide design guidelines applicable to a wide range of systems. Overall, the temporal and spatial characteristics of the interference play a significant role in shaping the system performance. Maximal ratio combining is only helpful when relays are close to the destination; in harsh environments, having many relays is particularly helpful, and relay placement is critical; the performance improves when interferer mobility increases; and a tradeoff exists between energy efficiency and throughput.
Keywords :
Rayleigh channels; cooperative communication; decode and forward communication; diversity reception; relay networks (telecommunication); stochastic processes; Rayleigh fading; interference-limited decode-and-forward cooperative relaying system; interferer mobility; maximal ratio combining; probability; selection combining; spatial Poisson process; Decoding; Diversity reception; Interference; Licenses; Rayleigh channels; Relays; Cooperative communication; interference; relay networks; stochastic processes; wireless communication;
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/TVT.2014.2372633
Filename :
6960905
Link To Document :
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