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A Dynamic Resource Allocation scheme with a GPS algorithm in Cellular-based Hybrid and Distributed Wireless Multi-hop Systems  

Bae, Byung-Joo (서강대학교 통신시스템 연구실)
Kim, Dong-Kun (서강대학교 통신시스템 연구실)
Shin, Bong-Jhin (서강대학교 통신시스템 연구실)
Kang, Byoung-Ik (서강대학교 통신시스템 연구실)
Hong, Dae-Hyoung (서강대학교 통신시스템 연구실)
Choe, Jin-Woo (서강대학교 통신네트워크 융합 및 최적화 연구실)
Abstract
In this paper, we propose a generalized processor sharing - dynamic resource allocation (GPS-DRA) scheme which allocates the required amount of resources to each hop dynamically in cellular-based multi-hop systems. In the hybrid-distributed system considered in this paper, a central controller such as a base station (BS) should allocate resources properly to each hop. However, due to changing channel condition with time, it is difficult to allocate as much amount of resources as each hop needs for transmission. GPS-DRA scheme allocates the required amount of resources dynamically to each hop based on the amount of resources used in previous frames by each hop. The amount of control overhead generated by GPS-DRA scheme can be very small because a central controller doesn't need to collect all link information for resource allocation. Our simulation results show that channel utilization increased about 16% and cell capacity increased about 65% compared to those of fixed resource allocation (FRA) scheme.
Keywords
Wireless system; Multi-hop; RRM; DRA; GPS;
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