ABEP of EGC Receiver over Composite and Non-homogenous Fading Channels with Phase Error and Co-channel Interference

Abstract

Average bit error probability (ABEP) performance of a dual branch equal gain combining (EGC) receiver is analyzed in correlated composite fading channels and in independent and identically distributed (i.i.d.) non-homogenous fading channels in the presence of phase error and co-channel interference. Closed form expressions for moments of the combiner output signal to interference plus noise ratio are derived individually for correlated composite fading channels and i.i.d. non-homogenous fading channels. Using the obtained expressions, the ABEP for binary phase shift keying modulation is obtained, applying moment generating function and Padé approximation approach. Numerical and simulation results for different degrees of phase errors and different values of ρ are obtained. The results for special cases were checked with the available results.

Keywords:

• Co-channel interference
• Equal gain combining
• Moment generating function
• Padé, Phase error

Additional information

Notes on contributors

Govindarajan Aruna

Govindarajan Aruna holds B.E (2001) from Madras University in Electronics and Communication Engineering and M.E (2004) with specialization in Communication Systems from the Department of Electronics and Communication Engineering at Anna University, Chennai. Currently, she is doing PhD in the Department of Electronics and Electrical Engineering at Indian Institute of Technology Guwahati. Her areas of research include fading channels, diversity receivers and Interferences in cellular architecture. E-mail: [email protected]

Pravas Ranjan Sahu

Pravas Ranjan Sahu received Bachelor in Engineering degree in Electronics and Telecommunication Engineering from UCE, Burla, Sampbalpur, India in 1990 and M. Tech and Ph.D degree in Electrical Engineering from Indian Institute of Technology Kanpur, India in 2000 and 2006, respectively. Previously, he worked for Coal India from 1991 to 1994. Then he was in Doordarshan, India under the ministry of Information and Broadcasting. Since 2005 he has been a faculty member in the Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, India. His current research interests include digital communications over fading channels, UWB communications and chaotic digital communications. E-mail: [email protected]