Stable Subchannel Allocation for OFDMA Femtocells with Switched Multi-Beam Directional Antennas

In this paper, we propose a low-complexity distributed stable subchannel allocation algorithm combined with a low-cost reconfigurable switched multi-beam directional antenna to improve the capacity and the fairness performance for the orthogonal frequency division multiple access (OFDMA)-based femto...

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Bibliographic Details
Main Authors: Ang-Hsun Tsai, Li-Chun Wang, Jane-Hwa Huang, Ruey-Bing Hwang
Format: Conference Proceeding
Language:English
Subjects:
Directional antennas
Femtocells
Interference
Macrocell networks
Resource management
Switches
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Summary:In this paper, we propose a low-complexity distributed stable subchannel allocation algorithm combined with a low-cost reconfigurable switched multi-beam directional antenna to improve the capacity and the fairness performance for the orthogonal frequency division multiple access (OFDMA)-based femtocell systems. With the proposed deferred acceptance algorithm, the stable subchannel allocation scheme can achieve a better tradeoff between capacity and fairness. Numerical results show that the proposed stable subchannel allocation scheme with the switched multi-beam antenna can significantly improve femtocell capacity compared to the traditional user-oriented subchannel allocation scheme and ensure the fairness as compared to the traditional channel-oriented subchannel allocation scheme.
ISSN:1930-529X
2576-764X
DOI:10.1109/GLOCOM.2011.6134172