DocumentCode :
10783
Title :
On the multiuser diversity in SIMO interfering multiple access channels: Distributed user scheduling framework
Author :
Won-Yong Shin ; Dohyung Park ; Bang Chul Jung
Author_Institution :
Dept. of Comput. Sci. & Eng., Dankook Univ., Yongin, South Korea
Volume :
17
Issue :
3
fYear :
2015
fDate :
Jun-15
Firstpage :
267
Lastpage :
274
Abstract :
Due to the difficulty of coordination in the cellular uplink, it is a practical challenge how to achieve the optimal throughput scaling with distributed scheduling. In this paper, we propose a distributed and opportunistic user scheduling (DOUS) that achieves the optimal throughput scaling in a single-input multiple-output interfering multiple-access channel, i.e., a multi-cell uplink network, with M antennas at each base station (BS) and N users in a cell. In a distributed fashion, each BS adopts M random receive beamforming vectors and then selects M users such that both sufficiently large desired signal power and sufficiently small generating interference are guaranteed. As a main result, it is proved that full multiuser diversity gain can be achieved in each cell when a sufficiently large number of users exist. Numerical evaluation confirms that in a practical setting of the multi-cell network, the proposed DOUS outperforms the existing distributed user scheduling algorithms in terms of sum-rate.
Keywords :
adjacent channel interference; cellular radio; diversity reception; multi-access systems; telecommunication scheduling; SIMO interfering multiple access channels; base station; beamforming vectors; cellular uplink; distributed scheduling; distributed user scheduling framework; full multiuser diversity gain; opportunistic user scheduling; optimal throughput scaling; signal power; single-input multiple-output interfering multiple-access channel; Array signal processing; Interference; Multiuser detection; Receivers; Signal to noise ratio; Throughput; Uplink; Diversity; inter-cell interference (ICI); multi-cell network; multi-user; throughput scaling; uplink; user scheduling;
fLanguage :
English
Journal_Title :
Communications and Networks, Journal of
Publisher :
ieee
ISSN :
1229-2370
Type :
jour
DOI :
10.1109/JCN.2015.000049
Filename :
7155734
Link To Document :
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