**Meet the editor**

Gianni Pasolini received the M.Sc. degree in Telecommunications Engineering and the Ph.D. degree in Electronic Engineering and Computer Science from the University of Bologna, Italy, in 1999 and 2003, respectively. In May 1999 he joined the IEIIT (the Institute for Electronics and for Information and Telecommunications Engineering of the National Research Council). Here he

started working on wireless local and personal area networks (WLAN and WPAN), WLANs and WPANs coexistence, WLAN radio resource management, WLANs/UMTS integration and WiMAX. His research interests include also digital signal processing and Intelligent Transportation Systems. In October 2006 he became a Researcher at the University of Bologna where he has been teaching telecommunications since 2003.

Contents

**Preface VII**

Chapter 1 **On MU-MIMO Precoding Techniques for WiMAX 1** Elsadig Saeid, Varun Jeoti and Brahim B. Samir

**Quality of Service Mechanisms 61**

Renato Francês and Kelvin Lopes Dias

**Scheme for Mobile WiMAX 85**

Jamalul-Lail Ab Manan

Chapter 3 **A Mobile WiMAX Mesh Network with Routing Techniques and**

Chapter 4 **Hybrid AHP and TOPSIS Methods Based Cell Selection (HATCS)**

Chapter 5 **EAP-CRA for WiMAX, WLAN and 4G LTE Interoperability 103**

Chapter 6 **Key Management in Mobile WiMAX Networks 129**

Mohammed A. Ben-Mubarak, Borhanuddin Mohd. Ali, Nor Kamariah Noordin, Alyani Ismail and Chee Kyun Ng

E. Sithirasenan, K. Ramezani, S. Kumar and V. Muthukkumarasamy

Mohammad-Mehdi Gilanian-Sadeghi, Borhanuddin Mohd Ali and

Tássio Carvalho, José Jailton Júnior, Warley Valente, Carlos Natalino,

Chapter 2 **PAPR Reduction in WiMAX System 35** Mona Shokair and Hifzalla Sakran
