Error Rates for 4-Branch Equal-Gain Combining in Independent Rayleigh Fading: A Simple Explicit Solution

Authors：Zhang, Q. T.^*

Source：IEEE Communications Letters, 2022, 26(2): 269-272.

DOI：10.1109/LCOMM.2021.3133140

• Rayleigh channels
• Diversity reception
• Closed-form solutions
• Signal to noise ratio
• Error analysis
• Binary phase shift keying
• Wireless communication
• Equal-gain combining
• Rayleigh fading
• closed-form solution
• error-rate performance

Error-rate formulas for equal-gain combining (EGC) in independent Rayleigh fading usually take the form of a single or double integral, and simple closed-form solutions are available only for simple EGC with two or three branches (EGC-2/EGC-3). In this paper, we derive a simple explicit solution to 4-branch EGC (EGC-4), aiming to complement few closed-form results in the literature.