Modulation diversity for differential amplitude and phase shift keying technique
Keywords:Signal Space Diversity (SSD), Differential Detection, Wireless Sensor Network (WSN), Energy Efficiency, Spectral Efficiency.
Modulation diversity can reduce the bit error rate in fading channels. We make use of the advantage of modulation diversity in non-coherent differential modulation technique. Increase in modulation diversity is obtained by rotating signal constellation. Coordinate interleaved Differential amplitude and phase-shift keying modulation (DAPSK) is particularly advantageous compared to the Differential phase-shift keying (DPSK) technique. Energy optimization is done to minimize the energy consumption. Simulation results shows that the proposed differential detection for different rotation angle achieves better BER performance than constant phase differential detection with modulation diversity.The energy required to successfully transmit a bit is also reduced for proposed system compared to Differential phase shift keying based system.
 Webb WT, Hanzo L & Steele R, â€œBandwidth efficient QAM schemes for Rayleigh fading channelsâ€, IEEE Proc.I, Vol.138, No.3, (1991), pp.169â€“175. https://doi.org/10.1049/ip-i-2.1991.0023.
 Boutros J &Viterbo E, â€œSignal space diversity: A power- and bandwidth-efficient diversity technique for the Rayeigh fading channelâ€, IEEE Trans. Inform. Theory, Vol.44, (1998), pp.1453â€“1467.https://doi.org/10.1109/18.681321.
 Schober R & Lampe L, â€œNoncoherent receivers for differential spaceâ€“time modulationâ€, IEEE Trans. Commun., Vol.50, (2002), pp.768â€“777.https://doi.org/10.1109/TCOMM.2002.1006558.
 Dallal YE &Shamai S, â€œTime diversity in DPSK noisy phase channelsâ€, IEEE Trans. Commun., Vol.40, (1992), pp.1703â€“1715.https://doi.org/10.1109/26.179934.
 Hochwald BM &Sweldens W, â€œDifferential unitary spaceâ€“time modulationâ€, IEEE Trans.Commun., Vol.48, (2000), pp.2041â€“2052.https://doi.org/10.1109/26.891215.
 Engels V &Rohling H, â€œMultilevel differential modulation technique (64-DAPSK) for multicarrier transmission systemsâ€, Eur. Trans.Telecommun., Vol.6, No.6, (1995), pp.633â€“640.https://doi.org/10.1002/ett.4460060605.
 Benedetto S, Biglieri E &Daffara R, â€œModeling and performance evaluation of nonlinear satellite links-a Volterra series approachâ€, IEEE Transactions on Aerospace and Electronic Systems, (1979), pp.494-507.https://doi.org/10.1109/TAES.1979.308734.
 Pupolin S & Greenstein L, â€œPerformance analysis of digital radio links with nonlinear transmit amplifiersâ€, IEEE Journal on selected areas in communications, Vol.5, No.3, (1987), pp.534-546.https://doi.org/10.1109/JSAC.1987.1146546.
 Ishibashi K, Ochiai H & Kohno R, â€œLow complexity bit-interleaved coded DAPSK for Rayleigh fading channelsâ€, IEEE J. Sel. Areas Commun., Vol.23, No.9, (2005), pp.1728â€“1738.https://doi.org/10.1109/JSAC.2005.853879.
 Liang XB & Xia XG, â€œUnitary signal constellations for differential space-time modulation with two transmit antennas: parametric codes, optimal designs, and boundsâ€, IEEE Transactions on Information Theory, Vol.48, No.8, (2002), pp.2291-2322.https://doi.org/10.1109/TIT.2002.800498.
 Cui S, Goldsmith AJ & Bahai A, â€œEnergy-efï¬ciency of MIMO and cooperative MIMO techniques in sensor networksâ€, IEEE J. Sel. Areas Commun., Vol.22, No.6, (2004), pp.1089-1098.https://doi.org/10.1109/JSAC.2004.830916.
 Taricco G &Viterbo E, â€œPerformance of component interleaved signal sets for fading channelsâ€, IEEE Electronics Letters, Vol.32, No.13, (1996), pp.1170â€“1172.https://doi.org/10.1049/el:19960816.
 De Oliveira Brante GG, Kakitani MT & Souza RD, â€œEnergy efficiency analysis of some cooperative and non-cooperative transmission schemes in wireless sensor networksâ€, IEEE Transactions on Communications, Vol.59, No.10, (2011), pp.2671-2677.https://doi.org/10.1109/TCOMM.2011.063011.100744.
 Maham B, Hjorungnes A & Narasimhan R, â€œEnergy-efficient space-time coded cooperation in outage-restricted multihop wireless networksâ€, IEEE Transactions on Communications, Vol. 59, No.11, (2011), pp.3111-3121.https://doi.org/10.1109/TCOMM.2011.082911.100280A.
 Jie D, Liu DP & Wu HR, â€œEnergy efficiency of virtual MIMO transmission schemes for cluster-based wireless sensor networksâ€, The Journal of china universities of posts and telecommunications, Vol.18, No.4, (2011), pp.31-38.https://doi.org/10.1016/S1005-8885(10)60080-5.
 Sheikhpour R &Jabbehdari S, â€œAn energy efficient chain-based routing protocol for wireless sensor networksâ€, KSII Transactions on Internet and Information Systems, Vol.7, No.6, (2013), pp.1357-1378.https://doi.org/10.3837/tiis.2013.06.001.