Dr. Mohamed NAFIE has published a book on communication codes entitled:

Enhancements to Low Density Parity Check Codes: Application to the WiMAX System

which is co-authored with Dr. Khaled ELMAHGOUB (EECE Alumni2001). More details on this recent publication are listed below. Meanwhile, all members of the EECE Department welcomes this new addition to the scientific knowledge, and wishes Dr. NAFIE and all EECE Staff more achievements and accomplishments.

Enhancements to Low Density Parity Check Codes: Application to the WiMAX System [Paperback]

Khaled ElMahgoub (Author), Mohammed Nafie (Author)

Book Description

Publication Date: February 2, 2010 | ISBN-10: 3838340906 | ISBN-13: 978-3838340906

LDPC Codes are considered to be serious competitors to turbo codes in terms of performance and complexity. They are specified by a sparse parity check matrix containing mostly 0s and relatively few 1s. In this book, LDPC codes used in the IEEE 802.16 standard physical layer were studied. Two novel techniques to enhance the performance of such codes are introduced. In the first technique, a novel parity check matrix for LDPC codes over GF(4) is proposed based on the binary parity check matrix used in the IEEE 802.16 standard . The proposed code has proven to outperform the binary code used in the IEEE 802.16 standard over both AWGN and SUI-3 channel model. In the second technique, high rate LDPC code is used, in a concatenated coding structure, as an outer code, with a convolutional code as an inner code. The performance of such a concatenated codes is compared with the commonly used one utilizing Reed-Solomon codes over the standard SUI-3 channel model, and show better performance.