MIMO System Optimization Using STTC Based STBC with Channel Estimation |
| |
Authors: | Sameru Sharma Sanjay Sharma Derick Engles |
| |
Affiliation: | 1. Government College of Engineering & Technology, Jammu, India 2. Power Development Department, Jammu, India 3. GND University, Amritsar, India
|
| |
Abstract: | We propose a new architecture involving space time trellis code (STTC) concatenated with space time block code (STBC) using modified sphere decoder (MSD-1) at the receiver for improving system performance in the multi-antenna environment. With the aim of increasing the ??Diversity Order?? of signal set, rotated versions of quadrature amplitude modulation (QAM) constellation have been used in multidimensional space and the associated design parameters required to search an effective signal constellation have been optimized. The limitations on account of complexity owing to multiple copies of data being received after experiencing various channel effects in the multi input multi output (MIMO) systems have been looked into. Accordingly, MSD-1 algorithm has been proposed with lower complexity, which in turn would give rise to a system with high spectral efficiency. The system gains have been verified with channel state information (CSI) errors. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|