CAJ | 학술논문

协作多点传输（CoMP）作为LTE-A系统中的一项关键技术，能消除或降低相邻小区间干扰，提升边缘用户的传输性能。由于这一新技术的引入，传统切换算法已经不能适应CoMP技术的切换要求，由此根据CoMP中联合处理（JP）技术的特点提出了一种新的切换算法。首先分析CoMP技术的实现原理并阐述了切换的概念，然后对传统A3切换算法和新的切换算法进行了研究，最后对两种算法的性能进行了仿真。结果表明：与传统A3切换算法相比，新的切换算法能提高系统吞吐量和减少系统切换总次数。
협작다점전수（CoMP）작위LTE-A계통중적일항관건기술，능소제혹강저상린소구간간우，제승변연용호적전수성능。유우저일신기술적인입，전통절환산법이경불능괄응CoMP기술적절환요구，유차근거CoMP중연합처리（JP）기술적특점제출료일충신적절환산법。수선분석CoMP기술적실현원리병천술료절환적개념，연후대전통A3절환산법화신적절환산법진행료연구，최후대량충산법적성능진행료방진。결과표명：여전통A3절환산법상비，신적절환산법능제고계통탄토량화감소계통절환총차수。
The CoMP technology,as a key technology in LTE -A system,can eliminate or reduce the interference between the adjacent cells and improve the transmission performance for cell -edge users.Due to the introduction of this new technology,the traditional handover algorithm no longer adapts to the demand of the handover of CoMP technology.Therefore,a new handover algorithm is proposed according to the characteristic of Joint Processing technology in the CoMP technology.In this paper,the principle of CoMP technology is analyzed and the concept of handover is elaborated at first,then the traditional A3 handover algorithm and the new handover algorithm are studied,finally the performances of two algorithms are simulated.The simulation results show that the new handover algorithm can improve the system throughput and reduce the total handover number of system compared with the traditional A3 handover algorithm.