nn, RObust Header Compression (ROHC): Framework and four profiles: RTP, UDP, ESP, and uncompressed, July 2001. WiMAX Forum Network Architecture Release 1.5 Version 1 -Stage 2, Architecture Tenets, Reference Model and Reference Points, November 2009, <http://www.wimaxforum.org/resources/documents/technical/ release>. [23] IEEE Std 802.21-2008, IEEE Standard for Local and Metropolitan Area Networks - Part 21: Media Independent Handover Services, January 2009. [24] Extensible Authentication Protocol (EAP), Wikipedia, <http://en.wikipedia.org/wiki/Extensible_ Authentication_Protocol> [25] Femto Forum, <http://femtoforum.org> [26] Femtocell, Wikipedia, <http://en.wikipedia.org/wiki/Femto_cell>. IEEE Std 802.16j-2009, IEEE Standard for Local and Metropolitan Area Networks Part 16: Air-interface for Fixed and Mobile Broadband Wireless Access Systems, Multi-hop Relay Specification, July 2009. [28] E. Dahlman, et al., 3G Evolution: HSPA and LTE for Mobile Broadband, second ed., Academic Press, October 2008. [29] 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. [30] 3GPP TS 36.331, Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification, March 2010. [31] 3GPP TS 36.323, Evolved Universal Terrestrial Radio Access (E-UTRA); Packet Data Convergence Protocol (PDCP) specification, March 2010. [32] 3GPP TS 36.321, Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification, March 2010. [33] 3GPP TS 36.322, Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Link Control (RLC) protocol specification, March 2010. [34] 3GPP TR 36.912, Feasibility study for Further Advancements for E-UTRA (LTE-Advanced), March 2010. CHAPTER IEEE 802.16m System Operation and State Diagrams INTRODUCTION This chapter provides a detailed description of the operation of IEEE 802.16m entities (i.e., mobile station, base station, fe