Title :
Throughput Analysis of Opportunistic Feedback for Downlink Multiuser Diversity with Capture Effect
Author :
Li, Hang ; Guo, Qinghua ; Huang, Defeng
Author_Institution :
Sch. of Electr., Univ. of Western Australia, Perth, WA, Australia
fDate :
1/1/2012 12:00:00 AM
Abstract :
An opportunistic feedback protocol has been proposed in the literature to achieve multiuser diversity for the downlink transmission of a multiuser wireless system. In this letter, through theoretical analysis and extensive simulations, it is shown that the capture effect can have a significant impact on system throughput. It is also shown that, to achieve optimal throughput, the number of minislots used for opportunistically finding a user in the protocol should not be too large due to the overhead induced by the control packets.
Keywords :
diversity reception; multi-access systems; protocols; capture effect; downlink multiuser diversity; downlink transmission; multiuser wireless system; opportunistic feedback protocol; throughput analysis; Downlink; Fading; Probability; Protocols; Receivers; Throughput; Wireless communication; Multiuser diversity; capture effect; opportunistic feedback; system throughput;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.111011.111751
