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서지반출
QoS Priority Based Femtocell User Power Control for Interference Mitigation in 3GPP LTE-A HetNet
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  • QoS Priority Based Femtocell User Power Control for Interference Mitigation in 3GPP LTE-A HetNet
  • QoS Priority Based Femtocell User Power Control for Interference Mitigation in 3GPP LTE-A HetNet
저자명
Ahmad. Ishtiaq,Kaleem. Zeeshan,Chang. KyungHi
간행물명
한국통신학회논문지. The Journal of Korea Information and Communications Society. 네트워크 및 서비스
권/호정보
2014년|2호|pp.61-74 (14 pages)
발행정보
한국통신학회
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정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

In recent years, development of femtocells are receiving considerable attention towards increasing the network coverage, capacity, and improvement in the quality of service for users. In 3GPP LTE-Advanced (LTE-A) system, to efficiently utilize the bandwidth, femtocell and macro cell uses the same frequency band, but this deployment poses a technical challenge of cross-tier interference to macro users. In this paper, the novel quality of service based fractional power control (QoS-FPC) scheme under the heterogeneous networks environment is proposed, which considers the users priority and QoS-requirements during the power allocation. The proposed QoS-FPC scheme has two focal points: firs, it protects the macrocell users uplink communication by limiting the cross-tier interference at eNB below a given threshold, and second, it ensures the optimization of femtocell users power allocation at each power adjustment phase. Performance gain is demonstrated with extensive system-level simulations to show that the proposed QoS-FPC scheme significantly decreases the cross-tier intereference and improves the overall users throughput.