Title :
Probability of error for noncoherent M-ary orthogonal FSK with postdetection switched combining
Author :
Simon, Marvin K. ; Alouini, Mohamed-Slim
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
The paper extends the notion of postdetection switched combining introduced by the authors to M-ary orthogonal modulation (Alouini and Simon, ibid., p.1591-1602, 2003) and proceeds to analyze and evaluate its average bit-error rate performance for the dual-branch case. The particular variation chosen for the switching strategy uses a different model than that previously used for the binary case and although it results in a slightly poorer performance, it nevertheless outperforms conventional (predetection) switched combining for all values of M. Results are obtained for a variety of popular channel models including Rayleigh, Rician, and Nakagami-m fading. Because of its relative simplicity of implementation, the proposed scheme once again offers a very attractive low-complexity solution for mitigating the deleterious effects of multipath fading.
Keywords :
Rayleigh channels; Rician channels; diversity reception; error statistics; fading channels; frequency shift keying; multipath channels; radio receivers; M-ary orthogonal modulation; Nakagami-m fading channels; Rayleigh fading channels; Rician fading channels; bit-error rate; dual-branch diversity receiver; error probability; multipath fading; noncoherent M-ary orthogonal FSK; postdetection diversity combining; postdetection switched combining; AWGN; Bit error rate; Diversity reception; Fading; Frequency shift keying; Monitoring; Performance analysis; Rayleigh channels; Rician channels; Switches;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2003.816968
