COORDINATED MULTIPOINT TRANSMISSION AND RECEPTION OF LTE-ADVANCED

Abstract

Coordinated multi-point (CoMP) transmission and reception is a network multiple-input multiple-output (MIMO) technology considered in 3GPP LTE-Advanced systems. In order to improve reliability and capacity of the services for the user equipments (UEs) at the cell edges, CoMP utilizes cooperation among neighbouring enhanced node Bs (eNBs). When a mobile station is at the cell edge, it may be able to receive signals from multiple cell sites, and the mobile station’s transmission may also be received at multiple cell sites. If the data transmission and signalling from multiple cell sites can be coordinated, the downlink performance can be significantly improved. This coordination can be similar to the interference avoidance techniques or the case where the same data is transmitted from multiple cell sites. In the uplink, since the signal can be received by multiple cell sites, the system can take advantage of coordinated multipoint reception to significantly improve the link performance. In the project, presented two scenario of networks, first is when coordination(CoMP) performed and other, is when there is no coordination to network(No-CoMP), By using Matlab Program the results are show that data rate, throughput especially cell-edge throughput, spectral efficiency and Bandwidth Utilization is improved after coordination have been formed. The results shows that data rate increased by 4.5 % to 22.5 % while spectral efficiency improved by 22 % to 65 % and also throughput increased by 60 % , delay time improved by 50 % to 66.7% , and also improves bandwidth efficiency by 30%.