TY - GEN
T1 - Buffer-aided relay selection with inter-relay interference mitigation for successive multiple antennas relay systems
AU - Darabi, Mostafa
AU - Ardebilipour, Mehrdad
AU - Maham, Behrouz
PY - 2014/12/31
Y1 - 2014/12/31
N2 - In this paper, we consider a cooperative network comprising of a source node, a destination node and M amplifyand- forward half-duplex relay nodes. Both the source and destination have one antenna and each relay is equipped with N antennas. There exists a buffer at each relay in order to store the incoming data packet and retransmit it to the destination later. At each time slot, simultaneous data transmission of the source and one of the relay results in inter-relay interference (IRI). We propose a novel buffer-aided relay selection scheme which mitigates the IRI with the aid of minimum variance (MV) beamforming and the relay buffers. More specifically, at each time slot, two relays are selected to receive data from the source and to transmit data to the destination provided that the associated source-to-destination signal-to-interference-plus-noise ratio (SINR) is maximized. By simulations, we investigate the performance of the proposed policy in terms of the throughput, delay, outage probability and SER (symbol error rate). It is shown that the proposed scheme suppresses the IRI efficiently, achieves higher throughput and lower outage probability compared to the other recently proposed successive relaying policies.
AB - In this paper, we consider a cooperative network comprising of a source node, a destination node and M amplifyand- forward half-duplex relay nodes. Both the source and destination have one antenna and each relay is equipped with N antennas. There exists a buffer at each relay in order to store the incoming data packet and retransmit it to the destination later. At each time slot, simultaneous data transmission of the source and one of the relay results in inter-relay interference (IRI). We propose a novel buffer-aided relay selection scheme which mitigates the IRI with the aid of minimum variance (MV) beamforming and the relay buffers. More specifically, at each time slot, two relays are selected to receive data from the source and to transmit data to the destination provided that the associated source-to-destination signal-to-interference-plus-noise ratio (SINR) is maximized. By simulations, we investigate the performance of the proposed policy in terms of the throughput, delay, outage probability and SER (symbol error rate). It is shown that the proposed scheme suppresses the IRI efficiently, achieves higher throughput and lower outage probability compared to the other recently proposed successive relaying policies.
KW - Successive relaying
KW - adaptive relay selection
KW - buffer-aided relay channel
KW - interference mitigation
KW - minimum variance beamforming.
UR - http://www.scopus.com/inward/record.url?scp=84931046395&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84931046395&partnerID=8YFLogxK
U2 - 10.1109/ISTEL.2014.7000852
DO - 10.1109/ISTEL.2014.7000852
M3 - Conference contribution
AN - SCOPUS:84931046395
T3 - 2014 7th International Symposium on Telecommunications, IST 2014
SP - 1015
EP - 1019
BT - 2014 7th International Symposium on Telecommunications, IST 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 7th International Symposium on Telecommunications, IST 2014
Y2 - 9 September 2014 through 11 September 2014
ER -