TY - GEN
T1 - Two-way amplify and forward relaying with adaptive modulation
AU - Hwang, Kyu Sung
AU - Ko, Young Chai
AU - Alouini, Mohamed Slim
PY - 2009
Y1 - 2009
N2 - Cooperative diversity has been recently presented as a new technique to improve the link performance of wireless communication systems. However, a loss in spectral efficiency due to half-duplex relaying can be a significant weak-point for high data rate communications. In this paper, we propose two-way amplify-and-forward relaying in conjunction with adaptive modulation in order to improve spectral efficiency of relayed communication systems while monitoring the required error performance. By using the ideal-scaled gain at the relay instead of the more practical power-scaled gain, we provide an approximate but a very accurate performance analysis of our proposed system. Our numerical examples show that the proposed system offers a considerable gain in the spectral efficiency and outage probability while satisfying the error rates requirements.
AB - Cooperative diversity has been recently presented as a new technique to improve the link performance of wireless communication systems. However, a loss in spectral efficiency due to half-duplex relaying can be a significant weak-point for high data rate communications. In this paper, we propose two-way amplify-and-forward relaying in conjunction with adaptive modulation in order to improve spectral efficiency of relayed communication systems while monitoring the required error performance. By using the ideal-scaled gain at the relay instead of the more practical power-scaled gain, we provide an approximate but a very accurate performance analysis of our proposed system. Our numerical examples show that the proposed system offers a considerable gain in the spectral efficiency and outage probability while satisfying the error rates requirements.
KW - Adaptive modulation
KW - Amplify-and-forward relaying
KW - Half-duplex transmission
KW - Two-way relaying
UR - http://www.scopus.com/inward/record.url?scp=70450280642&partnerID=8YFLogxK
U2 - 10.1145/1582379.1582680
DO - 10.1145/1582379.1582680
M3 - Conference contribution
AN - SCOPUS:70450280642
SN - 9781605585697
T3 - Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
SP - 1370
EP - 1374
BT - Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
T2 - 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
Y2 - 21 June 2009 through 24 June 2009
ER -