Cross-Layer Optimized Resource Allocation Scheme for OFDMA based Micro Base Stations

조성현

Cross-Layer Optimized Resource Allocation Scheme for OFDMA based Micro Base Stations

Journal of The Korea Society of Computer and Information
Abbr : JKSCI
2010, 15(6), pp.49-56
Publisher : The Korean Society Of Computer And Information
Research Area : Engineering > Computer Science

조성현 ¹

¹경상대학교

Accredited

ABSTRACT

In this paper, a joint PHY-MAC layer optimized resource allocation scheme for OFDMA based micro base stations is investigated. We propose cross-layer optimized two-stage resource allocation scheme including cross-layer functional description and control information flow between PHY-MAC layers. The proposed two-stage resource allocation scheme consists of a user grouping stage and a resource allocation stage. In the user grouping stage, users are divided into a macro base station user group and a micro base station user group based on the PHY-MAC layer characteristics of each user. In the resource allocation stage, a scheduling scheme and an allotment of resources are determined. In the proposed scheme, diversity and adaptive modulation and coding (AMC) schemes are exploited as schedulers. Simulation results demonstrate that the proposed scheme increases the average cell throughput about 40~80 % compared to the conventional system without micro base stations.

KEYWORDS

Micro base station, resource allocation, cross-layer optimization, diversity

Citation status

* References for papers published after 2023 are currently being built.

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Journal of The Korea Society of Computer and Information 2023 KCI Impact Factor : 0.65