Title :
Analysis of LMS Based Dual Hop MIMO Systems with Beamforming
Author :
Dhungana, Yamuna ; Rajatheva, Nandana
Author_Institution :
Sch. of Eng. & Technol., Asian Inst. of Technol., Pathumthani, Thailand
Abstract :
The concept of relay transmission is applied to Land Mobile Satellite (LMS) communication where a terrestrial relay node forwards information from the satellite to the mobile unit. Two hop Amplify and Forward (AF) and Decode and Forward (DF) cases are considered where source, relay and destination, all are equipped with multiple antennas, using Maximal Ratio Transmission (MRT)-Selection Combining (SC) diversity technique for the first hop and Maximal Ratio Combining (MRC) for the second hop. We present analysis of both AF and DF in terms of outage probability and Symbol Error Rate (SER) for which closed form expressions are derived and show that DF always outperforms AF. Results are illustrated through several examples in order to assess the impact of multiple antennas at the nodes and shadowing severity parameter m on the performance.
Keywords :
MIMO communication; amplify and forward communication; antennas; decode and forward communication; diversity reception; mobile satellite communication; probability; amplify and forward case; antenna; beamforming; decode and forward case; dual hop MIMO systems; land mobile satellite communication; maximal ratio combining; maximal ratio transmission-selection combining diversity technique; outage probability; relay transmission; symbol error rate; terrestrial relay node; Antennas; Least squares approximation; Neodymium; Peer to peer computing; Relays; Satellites; Signal to noise ratio;
Conference_Titel :
Communications (ICC), 2011 IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-61284-232-5
Electronic_ISBN :
1550-3607
DOI :
10.1109/icc.2011.5962564
