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Efficient Combining Scheme of Scheduling and Channel Allocation in Multi-Channel Systems Hoyoung CHOI Jinwoo CHOE Daehyoung HONG Publication IEICE TRANSACTIONS on Communications Vol.E90-B No.12 pp.3699-3703 Publication Date: 2007/12/01 Online ISSN: 1745-1345 DOI: 10.1093/ietcom/e90-b.12.3699 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: multi-channels, OFDMA, scheduling, channel allocation, RRM, Full Text: PDF(524.1KB)>>
Summary: In this letter, we propose an efficient scheme for combining scheduling and channel allocation functions in multi-channel systems such as an orthogonal frequency division multiple access (OFDMA). In our approach, the scheduling function is embedded in the channel allocation function in an implicit manner, and the implicit scheduler only translates quality-of-service (QoS) requirements into a set of constraints on channel allocation. The channel allocation problem is then formulated as a linear programming (LP) problem, and the optimal solution can be easily obtained through various LP algorithms. Through extensive numerical experiments, it is demonstrated that the proposed scheme can maximize the cell throughput under the given QoS requirements. | |||||
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