Title :
Diversity combining for enhanced UWB system performance
Author :
Magani, Musa ; Guo, Lu ; Chen, Xiaodong
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Queen Mary Univ. of London, London, UK
Abstract :
Achieving high data rate greater than 200Mbps for MB-OFDM UWB communications is a challenging task. Constrains of limited power and degrading transmission medium are the key hurdles. Currently most existing data systems can reach a data rate of only 80Mbps. This study proposes the use of spatial diversity to enhance the MB-OFDM UWB system performance while achieving high data rate. Spatial diversity is employed over short antenna spacing starting from a third of the wavelength. Maximum combining ratio (MRC) and Antenna selection methods are used. The system performance is evaluated considering both line of sight (LOS) and Non Line of sight (NLOS) cases. The results show that a Gain of up to 8dB is achieved using MRC as compared to an SISO (single input single output system).
Keywords :
OFDM modulation; antennas; diversity reception; ultra wideband communication; MB-OFDM UWB communication; SISO; antenna selection method; diversity combining; enhanced UWB system performance; line of sight; maximum combining ratio; short antenna spacing; spatial diversity; transmission medium degrading; Antenna measurements; Bit error rate; Correlation; Receiving antennas; Ultra wideband antennas;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2011 Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4577-1014-8
Electronic_ISBN :
978-1-4577-1015-5
DOI :
10.1109/LAPC.2011.6113977
