Diversity combining for coherent and differential M-PSK in fading and class-A impulsive noise

• Published in: IEEE transactions on wireless communications Vol. 4; no. 4; pp. 1425 - 1432
• Main Authors: Schober, R., Ma, Y., Lampe, L., Mathiopoulos, P.T.
• Format: Journal Article
• Language: English
• Published: Piscataway, NJ IEEE 01.07.2005; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Additive white noise; Applied sciences; AWGN; Channels; Class-A impulsive noise; Coherence; Computational complexity; diversity combining; Diversity reception; Exact sciences and technology; Fading; Gain; Gaussian noise; Noise; Optimization; Performance analysis; Performance gain; Phase noise; Strategy; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Transmission and modulation (techniques and equipments); Upper bound; Wireless communication; Fading channels; Performance evaluation; Phase shift keying; Pulse noise; M ary modulation; Diversity combining; Rice fading; Optimal planning; Class-A impulsive noise; Computational complexity; fading; performance analysis
• ISSN: 1536-1276; 1558-2248
• DOI: 10.1109/TWC.2005.852124

In this paper, optimum and suboptimum diversity combining schemes for coherent and differential M-ary phase-shift keying (M-PSK) transmission impaired by general Ricean fading and impulsive Class-A noise are derived and analyzed. The proposed suboptimum coherent combining (SCC) and suboptimum noncoherent combining (SNC) schemes yield similar performance as the corresponding optimum combining schemes but require a lower computational complexity. In addition, the novel SCC and SNC strategies achieve large performance gains over conventional maximum ratio combining (MRC) and equal gain combining (EGC), respectively. For MRC and EGC, respectively, we also provide a performance analysis for coherent and differential M-PSK transmissions over general Ricean fading channels with Class-A noise. Furthermore, tight performance upper bounds for the proposed optimum and suboptimum combining schemes are derived.