Improving Achievable Rates in MPSK Amplify-and-Forward Relay Networks via Clipping

TY - JOUR

T1 - Improving Achievable Rates in MPSK Amplify-and-Forward Relay Networks via Clipping

AU - Zhang, Qi

AU - Yu, Fengqi

AU - Nallanathan, A.

PY - 2010/6

Y1 - 2010/6

N2 - Companding techniques, which are conventionally considered to reduce the peak-to-average power ratio (PAPR) for orthogonal frequency-division-multiplexing (OFDM) systems, decrease the achievable rate. However, we propose to employ clipping, one of the companding techniques, to improve the achievable rates for M-ary phase-shift-keying (MPSK) amplify-and-forward (AF) cooperative communications in this paper. The improved achievable rate of the system is shown through numerical results. It is also found that among the conventional companding techniques, the clipping technique may achieve the highest transmission rate.

AB - Companding techniques, which are conventionally considered to reduce the peak-to-average power ratio (PAPR) for orthogonal frequency-division-multiplexing (OFDM) systems, decrease the achievable rate. However, we propose to employ clipping, one of the companding techniques, to improve the achievable rates for M-ary phase-shift-keying (MPSK) amplify-and-forward (AF) cooperative communications in this paper. The improved achievable rate of the system is shown through numerical results. It is also found that among the conventional companding techniques, the clipping technique may achieve the highest transmission rate.

U2 - 10.1109/TVT.2010.2041678

DO - 10.1109/TVT.2010.2041678

M3 - Article

VL - 59

SP - 2133

EP - 2137

JO - IEEE Transactions on Vehicular Technology

JF - IEEE Transactions on Vehicular Technology

IS - 5

M1 - 5404404

ER -