Presentation 2014-10-16
A Study on a Reduced Complexity Sub-Carrier Allocation Approach in MISO-OFDMA Systems with QoS Provision
Mahmoud M. Selim, Osamu Muta, Hossam M. H. Shalaby, Hiroshi Furukawa,
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Abstract(in English) In this paper, we propose a reduced complexity resource allocation technique for the downlink of Multiple-Input Single-Output Orthogonal Frequency Division Multiple-Access (MISO-OFDMA) system. The proposed algorithm efficiently allocates frequency resources among users per subcarrier such that a group of users are simultaneously assigned on the same subcarrier with minimum amount of interference through zero forcing beamforming (ZFBF). The proposed algorithm considers quality of service (QoS) in terms of minimum user rate for each user and preserves fairness among users. QoS plays a key role in fulfillment of user demand of high bandwidth data services in modern wireless systems. Simulation results reveals that the proposed algorithm outperforms other reference algorithms in terms of sum rate, minimum user rate, QoS and preserves a very good fairness performance. Complexity of proposed algorithm is measured by execution time needed and compared to reference algorithms. Simulation results show a further reduction in complexity.
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Keyword(in English) Sub-carrier allocation / ZFBF / MISO / OFDMA / QoS / fairness
Paper # RCS2014-159
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Committee RCS
Conference Date 2014/10/9(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on a Reduced Complexity Sub-Carrier Allocation Approach in MISO-OFDMA Systems with QoS Provision
Sub Title (in English)
Keyword(1) Sub-carrier allocation
Keyword(2) ZFBF
Keyword(3) MISO
Keyword(4) OFDMA
Keyword(5) QoS
Keyword(6) fairness
1st Author's Name Mahmoud M. Selim
1st Author's Affiliation Kyushu University:Egypt-Japan University of Science & Technology()
2nd Author's Name Osamu Muta
2nd Author's Affiliation Kyushu University
3rd Author's Name Hossam M. H. Shalaby
3rd Author's Affiliation Egypt-Japan University of Science & Technology
4th Author's Name Hiroshi Furukawa
4th Author's Affiliation Kyushu University
Date 2014-10-16
Paper # RCS2014-159
Volume (vol) vol.114
Number (no) 254
Page pp.pp.-
#Pages 6
Date of Issue