 Rias Muhamed, Fundamentals of WiMAX: Understanding Broadband Wireless Networking, first ed., Prentice Hall, 2007. [8] WiMAX Forum, Mobile System Profile Release 1.5 Air Interface Specification, August 2009. [9] Mikko Majanen et al., "Mobile WiMAX Handover Performance Evaluation," Proceedings of Fifth International Conference on Networking and Services, April 2009. [10] Antti Makelainen, Analysis of Handoff Performance in Mobile WiMAX Networks, MS Thesis,, Helsinki University of Technology, Espoo, Finland, March 2007. [11] IST-2003-507581 WINNER D1.3 version 1.0, Final Usage Scenarios, June 2005. Appendix A: Proportional fair scheduling algorithm [12] Erik Dahlman, et al., 3G Evolution: HSPA and LTE for Mobile Broadband, second ed., Academic Press, 2008. [13] 3GPP TS 36.300, Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall Description; Stage 2, March 2010. [14] 3GPP TS 36.331, Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol Specification, March 2010. [15] 3GPP TR 36.913, Requirements for Further Advancements for Evolved Universal Terrestrial Radio Access (E-UTRA) LTE-Advanced, March 2009. [16] ISO 8824/ITU X.680 specifies the message syntax <http://www.itu.int/ITU-T/studygroups/com17/ languages/X.680-0207.pdf>. [17] ISO 8825/ITU X.690 specifies the basic encoding rules for ASN.1 <http://www.itu.int/ITU-T/ studygroups/com17/languages/X.690-0207.pdf> [18] ITU-T Recommendation X.691, ASN.1 Encoding Rules: Specification of Packed Encoding Rules (PER), June 1999. [19] IETF RFC 2104, H. Krawczyk, et al., HMAC: Keyed-Hashing for Message Authentication, February 1997. [20] Hashed Message Authentication Code (HMAC), Wikipedia <http://en.wikipedia.org/wiki/Keyed-hash_ message_authentication_code> [21] Cipher-based Message Authentication Code (CMAC), Wikipedia <http://en.wikipedia.org/wiki/CMAC>. WiMAX Forum Network Architecture Release 1.5 Version 1, Stage 2: Architecture Tenets, Reference Model and Refe