Linde, LPVlok, JD2007-08-102007-08-102007-09Linde, LP and Vlok, JD.2007. Multi-dimensional super-orthogonal modulation alternative to M-QAM WCDMA for next generation wireless applications. IEEE Africon 2007. Windhoek, Namibia. 26-28 September 2007, pp 8http://hdl.handle.net/10204/1097This paper presents bit-error-rate (BER) performance results of an upwards-expandable Multidimensional super-orthogonal modulation alternative to M-ary quadrature amplitude modulation wideband codedivision-multiple-access (M-QAM WCDMA), suitable for application in next generation WLAN and wireless cellular systems. The unique combination of a M=4-dimensional WCDMA modem configuration and super-orthogonal families of quasi-complementary root-of-unity filtered (RUF) near constant-envelope generalized-chirp-like complex spreading sequences (SO-CE-GCL-CSS), renders a spectrally and power efficient output signal with a data throughput rate equivalent to that of M=16-ary quadrature amplitude modulated (16-QAM) WCDMA, but with the BER performance equivalent to that of BPSK/QPSK in both additive white Gaussian noise (AWGN) and fading multipath channel scenarios, given identical spreading factors and bandwidthsenComplex spreading sequencesMulti-dimensional modulationMulti-layered modulationRoof-of-unity filteringConference PresentationLinde, L., & Vlok, J. (2007). Multi-dimensional super-orthogonal modulation alternative to M-QAM WCDMA for next generation wireless applications. http://hdl.handle.net/10204/1097Linde, LP, and JD Vlok. "Multi-dimensional super-orthogonal modulation alternative to M-QAM WCDMA for next generation wireless applications." (2007): http://hdl.handle.net/10204/1097Linde L, Vlok J, Multi-dimensional super-orthogonal modulation alternative to M-QAM WCDMA for next generation wireless applications; 2007. http://hdl.handle.net/10204/1097 .TY - Conference Presentation AU - Linde, LP AU - Vlok, JD AB - This paper presents bit-error-rate (BER) performance results of an upwards-expandable Multidimensional super-orthogonal modulation alternative to M-ary quadrature amplitude modulation wideband codedivision-multiple-access (M-QAM WCDMA), suitable for application in next generation WLAN and wireless cellular systems. The unique combination of a M=4-dimensional WCDMA modem configuration and super-orthogonal families of quasi-complementary root-of-unity filtered (RUF) near constant-envelope generalized-chirp-like complex spreading sequences (SO-CE-GCL-CSS), renders a spectrally and power efficient output signal with a data throughput rate equivalent to that of M=16-ary quadrature amplitude modulated (16-QAM) WCDMA, but with the BER performance equivalent to that of BPSK/QPSK in both additive white Gaussian noise (AWGN) and fading multipath channel scenarios, given identical spreading factors and bandwidths DA - 2007-09 DB - ResearchSpace DP - CSIR KW - Complex spreading sequences KW - Multi-dimensional modulation KW - Multi-layered modulation KW - Roof-of-unity filtering LK - https://researchspace.csir.co.za PY - 2007 T1 - Multi-dimensional super-orthogonal modulation alternative to M-QAM WCDMA for next generation wireless applications TI - Multi-dimensional super-orthogonal modulation alternative to M-QAM WCDMA for next generation wireless applications UR - http://hdl.handle.net/10204/1097 ER -