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Title: Sum capacity maximization in distributed multicell MISO-OFDMA systems with reduced feedback links
Authors: Özbek, Berna
Le Ruyet, Didier
Pischella, Mylene
Keywords: Frequency division multiple access
Wireless channel
Orthogonal frequency division multiple access
Telecommunication links
Signal interference
Issue Date: 2014
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: Özbek, B., Le Ruyet, D., and Pischella, M. (2014, August 26-29). Sum capacity maximization in distributed multicell MISO-OFDMA systems with reduced feedback links. Paper presented at the 11th International Symposium on Wireless Communications Systems. doi:10.1109/ISWCS.2014.6933407
Abstract: In this paper, we examine distributed and fair resource allocation for weighted sum multicell capacity maximization in multi-input single-output (MISO)-Orthogonal Frequency-Division Multiple Access (OFDMA) multicell systems with reduced feedback links. We apply zero forcing (ZF) precoding to reduce interference between the users in the same cell and then propose iterative distributed power allocation algorithm for the users with high signal-to-interference-plus-noise ratio (SINR) to reduce the interference between BSs. In order to perform distributed RA for MISO-OFDMA multicell systems, the channel state information (CSI) of all required links are fed back to all base stations. However, the feedback load increases with the number of users, base stations, subcarriers and antennas. Therefore, we propose a user selection algorithm at the receiver side to reduce the feedback load while providing CSI of the users with high SINR at the BSs. The performance results of the proposed algorithms are illustrated for multicell MISO-OFDMA systems in wireless channels. © 2014 IEEE.
Description: 11th International Symposium on Wireless Communications Systems, ISWCS 2014; Barcelona; Spain; 26 August 2014 through 29 August 2014
ISBN: 9781479958634
Appears in Collections:Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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