New Combining Scheme in STBC Single Carrier Block Transmission System

Authors:
Jieling Wang;Hong Yang;Kechu Yi
Affiliations:
Department of Telecommunication, ISN National Key Laboratory, Xidian University, Xi'an, China;Department of Telecommunication, ISN National Key Laboratory, Xidian University, Xi'an, China and China Academy of Space Technology, Beijing, China;Department of Telecommunication, ISN National Key Laboratory, Xidian University, Xi'an, China
Venue:
Wireless Personal Communications: An International Journal
Year:
2012

Citing 4
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Abstract

A new diversity combining algorithm is presented in this paper with high performance in the STBC single carrier (SC) block transmission MISO system with two transmit antennas and one receive antenna. The decision on the transmitted signal is made by STBC-based SC frequency domain equalizer (STBC-SC-FDE), and then the line of sight (LOS) component under Rician fading channels or the component with highest power under Rayleigh fading channels in the received signal is obtained by cancelling the multipath signals reconstructed by the initial detecting solution and the channel impulse response (CIR) from the received signal. Then, the LOS or the strongest component is combined using STBC-like combining scheme. The new algorithm can achieve the performance advantages dramatically over STBC-SC-FDE which is verified by computer simulations carried out in the SUI-4 and TU wireless communication link.