Exploiting multiuser diversity in OFDMA wireless mesh networks by fractional spatial reuse

Jie Xu; Yiqun Wu; Zhisheng Niu; Jinri Huang

doi:10.1109/ICC.2010.5502324

Exploiting multiuser diversity in OFDMA wireless mesh networks by fractional spatial reuse

Jie Xu, Yiqun Wu, Zhisheng Niu, Jinri Huang

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

We consider subcarrier assignment and power allocation in OFDMA wireless mesh networks. Traditional full spatial reuse increases bandwidth efficiency but ignores multiuser diversity in the multi-hop network. Our method enables fractional spatial reuse with which multiuser diversity can also be exploited. The original optimization problem is decomposed into three tractable subproblems. First, subcarrier numbers on each link are decided according to end-to-end requirement and node power constraint. Then a novel link grouping method is proposed to utilize fractional spatial reuse in the network. Finally, a tabubased subcarrier assignment algorithms is designed to assign subcarriers to groups to exploit multiuser diversity. Performance is evaluated under various network sizes to investigate the impact of spatial reuse and simulation results show our proposed scheme achieves multiuser diversity in spatial reuse scenarios.

Original language	English (US)
Title of host publication	2010 IEEE International Conference on Communications, ICC 2010
DOIs	https://doi.org/10.1109/ICC.2010.5502324
State	Published - Aug 13 2010
Externally published	Yes
Event	2010 IEEE International Conference on Communications, ICC 2010 - Cape Town, South Africa Duration: May 23 2010 → May 27 2010

Publication series

Name	IEEE International Conference on Communications
ISSN (Print)	0536-1486

Other

Other	2010 IEEE International Conference on Communications, ICC 2010
Country	South Africa
City	Cape Town
Period	5/23/10 → 5/27/10

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering

Access to Document

10.1109/ICC.2010.5502324

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Cite this

Xu, J., Wu, Y., Niu, Z., & Huang, J. (2010). Exploiting multiuser diversity in OFDMA wireless mesh networks by fractional spatial reuse. In 2010 IEEE International Conference on Communications, ICC 2010 [5502324] (IEEE International Conference on Communications). https://doi.org/10.1109/ICC.2010.5502324

Xu, J, Wu, Y, Niu, Z & Huang, J 2010, Exploiting multiuser diversity in OFDMA wireless mesh networks by fractional spatial reuse. in 2010 IEEE International Conference on Communications, ICC 2010., 5502324, IEEE International Conference on Communications, 2010 IEEE International Conference on Communications, ICC 2010, Cape Town, South Africa, 5/23/10. https://doi.org/10.1109/ICC.2010.5502324

@inproceedings{93884ac25ee94c898d4ba6c771f1d256,

title = "Exploiting multiuser diversity in OFDMA wireless mesh networks by fractional spatial reuse",

abstract = "We consider subcarrier assignment and power allocation in OFDMA wireless mesh networks. Traditional full spatial reuse increases bandwidth efficiency but ignores multiuser diversity in the multi-hop network. Our method enables fractional spatial reuse with which multiuser diversity can also be exploited. The original optimization problem is decomposed into three tractable subproblems. First, subcarrier numbers on each link are decided according to end-to-end requirement and node power constraint. Then a novel link grouping method is proposed to utilize fractional spatial reuse in the network. Finally, a tabubased subcarrier assignment algorithms is designed to assign subcarriers to groups to exploit multiuser diversity. Performance is evaluated under various network sizes to investigate the impact of spatial reuse and simulation results show our proposed scheme achieves multiuser diversity in spatial reuse scenarios.",

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doi = "10.1109/ICC.2010.5502324",

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N2 - We consider subcarrier assignment and power allocation in OFDMA wireless mesh networks. Traditional full spatial reuse increases bandwidth efficiency but ignores multiuser diversity in the multi-hop network. Our method enables fractional spatial reuse with which multiuser diversity can also be exploited. The original optimization problem is decomposed into three tractable subproblems. First, subcarrier numbers on each link are decided according to end-to-end requirement and node power constraint. Then a novel link grouping method is proposed to utilize fractional spatial reuse in the network. Finally, a tabubased subcarrier assignment algorithms is designed to assign subcarriers to groups to exploit multiuser diversity. Performance is evaluated under various network sizes to investigate the impact of spatial reuse and simulation results show our proposed scheme achieves multiuser diversity in spatial reuse scenarios.

AB - We consider subcarrier assignment and power allocation in OFDMA wireless mesh networks. Traditional full spatial reuse increases bandwidth efficiency but ignores multiuser diversity in the multi-hop network. Our method enables fractional spatial reuse with which multiuser diversity can also be exploited. The original optimization problem is decomposed into three tractable subproblems. First, subcarrier numbers on each link are decided according to end-to-end requirement and node power constraint. Then a novel link grouping method is proposed to utilize fractional spatial reuse in the network. Finally, a tabubased subcarrier assignment algorithms is designed to assign subcarriers to groups to exploit multiuser diversity. Performance is evaluated under various network sizes to investigate the impact of spatial reuse and simulation results show our proposed scheme achieves multiuser diversity in spatial reuse scenarios.

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