http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 나브라티색서나 (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Multi-Objective Handover in LTE Macro/Femto-Cell Networks
Abhishek Roy,신지태,나브라티색서나 한국통신학회 2012 Journal of communications and networks Vol.14 No.5
One of the key elements in the emerging, packet-based long term evolution (LTE) cellular systems is the deployment of multiple femtocells for the improvement of coverage and data rate. However, arbitrary overlaps in the coverage of these femtocells make the handover operation more complex and challenging. As the existing handover strategy of LTE systems considers only carrier to interference plus noise ratio (CINR), it often suffers from resource constraints in the target femtocell, thereby leading to handover failure. In this paper, we propose a new ef-ficient, multi-objective handover solution for LTE cellular systems. The proposed solution considersmultiple parameters like signal strength and available bandwidth in the selection of the optimal target cell. This results in a significant increase in the handover success rate, thereby reducing the blocking of handover and new sessions. The overall handover process is modeled and analyzed by a three-dimensional Markov chain. The analytical results for the major performance metrics closely resemble the simulation results. The simulation results show that the proposedmulti-objective handover offers considerable improvement in the session blocking rates, session queuing delay, handover latency, and goodput during handover.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
