Error Rate Analysis of Band-Limited BPSK With Nakagami/Nakagami ACI Considering Nonlinear Amplifier and Diversity

• Published in: IEEE transactions on vehicular technology Vol. 59; no. 3; pp. 1523 - 1529
• Main Authors: Rahman, M.A., Sum, C.S., Funada, R., Baykas, T., Wang, J., Sasaki, S., Harada, H., Kato, S.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.03.2010; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: ACI; Adjacent channel interference (ACI); Amplifiers; Applied sciences; Binary phase shift keying; Binary systems; Channels; Circuit properties; cochannel interference (CCI); Electric, optical and optoelectronic circuits; Electronic circuits; Electronics; Error analysis; error-rate analysis; Errors; Exact sciences and technology; Fading; Filters; Frequency domain analysis; Frequency filters; Information, signal and communications theory; Interchannel interference; Modulation, demodulation; Nakagami fading; Nonlinearity; Phase shift keying; power amplifier (PA) nonlinearity and diversity receivers; Power amplifiers; Radiofrequency interference; Receivers; Signal and communications theory; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Transmission and modulation (techniques and equipments); Transmitters; Fading channels; Error analysis; Error estimation; Time frequency domain method; Electronic filters; Cochannel interference; Error rate; Transmitter; Receiver; Adjacent channel interference (ACI); Power electronics; Binary phase shift keying; Adjacent channel; Non linear phenomenon; Characteristic function; error-rate analysis; Nakagami fading; power amplifier (PA) nonlinearity and diversity receivers; Diversity reception; cochannel interference (CCI); Adjacent channel interference; Power amplifier; Non linear effect
• ISSN: 0018-9545; 1939-9359
• DOI: 10.1109/TVT.2009.2037821

An exact expression of the average error rate is developed for a band-limited binary phase-shift keying (BPSK) system in the presence of adjacent channel interference (ACI) considering a Nakagami fading channel. The system employs a root-raised cosine (RRC) filter both in the transmitter and receiver sides and a transmitter power amplifier (PA) that may have nonlinear input/output characteristics. These practical considerations are accurately taken into account. By utilizing the characteristic function (CF) method of error-rate analysis, we interestingly blend the concepts of time and frequency domains and develop an error-rate expression that is simple and general for several system parameters, including adjacent channel separation, RRC filter roll-off factor, and PA output back-off (OBO). Hence, the error rate in the presence of cochannel interference (CCI) is obtained as a special case. The developed results for a single-branch receiver are then extended for diversity receivers, and several interesting observations are made.