General bit error probability of rectangular quadrature amplitude modulation

Exact BER of Rectangular-Constellation Quadrature Amplitude Modulation Subjected to Asynchronous Co-Channel Interference and Nakagami-m Fading

“…we have K = 0, Equations 18 and 19 reduce to the single-user results of [10], [11]. As expected, when only BPSK or QPSK are considered, i.e.…”

“…The R-QAM signal consists of two independent amplitudemodulated signals and can be expressed as [10]:…”

“…channels. The AWGN result of [9] was later extended to Nakagami-m [10], [11] and Ricean [12] fading channels. A signal-space partitioning method was proposed for calculating the exact SER/BER of arbitrary two-dimensional signaling in the context of various fading channels in [13].…”

Exact BER of rectangular-constellation QAM subjected to asynchronous co-channel interference and Nakagami-m fading

“…When there is no interference, i.e. we have K ¼ 0, and (14) reduces to the single-user results of [2]. As expected, when only BPSK or QPSK are considered, (14) reduces to the results of [5].…”

“…Most exact QAM BER results are obtained without taking into account the co-channel interference (CCI) [1,2]. When CCI is considered, exact BER analyses procedures are performed only for BPSK [3][4][5] and QPSK [4,5] systems.…”