Title :
Performance improvement of OFDM based virtual QOSTBC
Author :
Veljovic, Zoran ; Urosevic, Ugljesa
Author_Institution :
Fac. of Electr. Eng., Univ. of Montenegro, Podgorica, Montenegro
Abstract :
In this paper we present a solution for performance improvement of orthogonal frequency division multiplexing (OFDM) based virtual quasi orthogonal space time block coding (QOSTBC). The considered scheme is used for creating virtual 4×1 multiple input-single output (MISO) channel. This scheme includes one base station (BS), one relay station (RS), both equipped with two antennas, and one mobile station (MS) with a single antenna. In this 2-hop scheme, the procedure at the RS is reduced due to omitting the decoding process. The simulation results show that the proposed solution provides evidently better bit error rate (BER) performance.
Keywords :
MIMO communication; OFDM modulation; antennas; decoding; error statistics; orthogonal codes; space-time block codes; 2-hop scheme; BER; BS; MISO channel; MS; OFDM based virtual QOSTBC; RS; base station; bit error rate; decoding process; mobile station; multiple input-single output channel; orthogonal frequency division multiplexing; performance improvement; relay station; single antenna; virtual quasi orthogonal space time block coding; Antennas; Bit error rate; MIMO; Modulation; OFDM; Quality of service; Signal to noise ratio; BER; OFDM; QOSTBC;
Conference_Titel :
Wireless Communications, Vehicular Technology, Information Theory and Aerospace & Electronic Systems (VITAE), 2014 4th International Conference on
Conference_Location :
Aalborg
Print_ISBN :
978-1-4799-4626-6
DOI :
10.1109/VITAE.2014.6934394
