Effect of Antenna Spacing on the Performance of Multiple Input Multiple Output LTE Downlink in an Urban Microcell

The paper presents design of a 2×2 multiple input multiple output (MIMO) LTE Downlink using OFDM with 16-QAM scheme, operated in a spatial Multiplexing (SM) mode. An urban Microcell Winner channel model is assumed to investigate the performance of the system. The focus of this paper is to understand the effect of antenna spacing of end transceivers on the performance of 2×2 MIMO LTE Downlink. The performance parameters like Capacity, Throughput and Bit error rate are determined for different antenna spacing at Base station (BS) as well as at mobile station( MS) for single user. Further the quantitative superiority of closed loop MIMO over Open Loop MIMO is established and discussed. The results depicted in the paper could be of vital importance for commercial deployment of MIMO based systems to fulfill requirements of contemporary wireless baseband technology.