DocumentCode :
231176
Title :
New simple cooperative relaying schemes
Author :
Urosevic, Ugljesa ; Veljovic, Zoran ; Pejanovic-Djurisic, Milica
Author_Institution :
Fac. of Electr. Eng., Univ. of Montenegro, Podgorica, Montenegro
fYear :
2014
fDate :
7-10 Sept. 2014
Firstpage :
340
Lastpage :
344
Abstract :
In this paper we propose new schemes for increasing code rate of simple cooperative relaying with virtual orthogonal space time block coding (OSTBC). The proposed schemes are used for creating virtual 4×1 multiple input-single output channel (MISO). These systems include one base station (BS) with two antennas, two relay stations (RS) each with a single antenna and one mobile station (MS) with a single antenna. One of the main disadvantages of the virtual OSTBC is its code rate, so we propose new simple cooperative relaying schemes with greater code rate while preserving BER of the scheme with virtual OSTBC. We proposed new schemes with greater code rate on the first hop while the code rate on the second hop remains the same. The code rates between BS and RSs in the proposed schemes are 1, 4/5, 2/3 and 4/7, while in the scheme with virtual OSTBC the code rate is only 1/2. The simulation results show that the proposed schemes maintain BER performance very close to the scheme with virtual OSTBC.
Keywords :
cooperative communication; error statistics; mobile radio; orthogonal codes; relay networks (telecommunication); space-time block codes; BER; MISO; code rate schemes; cooperative relaying schemes; mobile station; multiple input-single output channel; single antenna; virtual OSTBC; virtual orthogonal space time block coding; Bit error rate; Fading; MIMO; Signal to noise ratio; Transmitting antennas; Wireless communication; BER; OSTBC; code rate; cooperative relaying;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Personal Multimedia Communications (WPMC), 2014 International Symposium on
Conference_Location :
Sydney, NSW
Type :
conf
DOI :
10.1109/WPMC.2014.7014841
Filename :
7014841
Link To Document :
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