3GPP LTE 멀티홉 릴레이 네트워크에서의 공정성 향상을 위한 트래픽 스케줄링 기법
Traffic Scheduling Schemes considering fairness for LTE Mobile Multi-hop Relay networks
- 발행기관 서강대학교 일반대학원
- 지도교수 장주욱
- 발행년도 2010
- 학위수여년월 2010. 2
- 학위명 석사
- 학과 일반대학원 전자공학과
- 실제URI http://www.dcollection.net/handler/sogang/000000045632
- 본문언어 영어
- 저작권 서강대학교의 논문은 저작권에 의해 보호받습니다
초록/요약
A traffic scheduler considering fairness for LTE mobile multi-hop relay networks is presented in this paper. We consider extension of the FRTS (Frame Registry Tree Scheduler) to LTE multi-hop relay networks. One major contribution of our work lies in developing a scheduler which improves fairness using adjustment of priority. The node with poor link and low priority traffic tends to fail to traffic contention. Based on this observation we elevate the priority of the traffic when it’s delayed next frame. This enables the UE/RN with poor link quality to have better chance to improve their throughput, leading to improved fairness for the network. Simulation with a 2-hop relay network with 1 eNodeB and 3 Relay nodes for regular traffic shows improvement of 12.6% and 8.6% respectively in terms of scheduling efficiency and fairness.
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