標題: | Improving Handover Performance in 5G mm-Wave HetNets |
作者: | Chen, Yu-Jia Hsu, Tong Wang, Li-Chun 電機工程學系 Department of Electrical and Computer Engineering |
關鍵字: | mm-Wave networks;Handover strategy;User mobility |
公開日期: | 1-一月-2017 |
摘要: | In future 5G communication systems, the mm-wave transmission is considered as a key solution to fulfill the growing demands in mobile traffic. To overcome the high propagation loss experienced at high frequencies, mm-wave transmission relies heavily on highly directional antennas. Because directional transmission is sensitive to position changes, the existing handover strategies which only consider the instantaneous received signal strength fails to provide robust connections for moving users. In this paper, we propose an improved handover strategy for mmwave mobile networks taking the connection robustness issue into account. The connection robustness is evaluated in terms of the effective beam coverage probability, which is defined as the probability that a user stays in the coverage area of the same beam after a certain time interval. We show that the proposed handover strategy can reduce handover frequency up to 35% with negligible throughput loss compared to the existing signal strength based scheme. |
URI: | http://hdl.handle.net/11536/147182 |
ISSN: | 2334-0983 |
期刊: | GLOBECOM 2017 - 2017 IEEE GLOBAL COMMUNICATIONS CONFERENCE |
顯示於類別: | 會議論文 |