Opportunistic packet scheduling algorithm for load balancing in a multi-hop relay-enhanced Cellular OFDMA-TDD system

Tae W. Kim, Tae Young Min, Chung G. Kang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In this paper, we consider a multi-hop relayenhanced cellular OFDMA-TDD system with the full frequency-reuse capability, in which a TDD frame can be asymmetrically divided into two different intervals, one for access link to mobile stations and the other for relay link to base station (BS)-relay station (RS) communication, while the same radio resource is fully reused by every RS in the cell. Since a single common boundary between access and relay links is employed for the system, some access link associated with an individual RS can be either overloaded or under-loaded when traffic load is non-uniformly distributed, which causes an inefficient resource allocation. This paper proposes a load-balancing opportunistic (LoBO) scheduling algorithm that improves the overall system throughput in a weighted proportional fairness manner while balancing the traffic load over the access link to be shared by all RS's. The proposed algorithm dynamically determines the common access-torelay interval boundary as a part of packet scheduling, which has been shown to outperform the conventional system in which the boundary selection and packet scheduling are implemented as the separate processes. copyright

Original languageEnglish
Title of host publication2008 14th Asia-Pacific Conference on Communications, APCC 2008
Publication statusPublished - 2008
Event2008 14th Asia-Pacific Conference on Communications, APCC 2008 - Akihabara, Tokyo, United States
Duration: 2008 Oct 142008 Oct 16

Publication series

Name2008 14th Asia-Pacific Conference on Communications, APCC 2008

Other

Other2008 14th Asia-Pacific Conference on Communications, APCC 2008
CountryUnited States
CityAkihabara, Tokyo
Period08/10/1408/10/16

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

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