Cataloged from PDF version of article.IEEE 802.16 standard (also known as WiMAX)\ud defines the wireless broadband network technology which aims\ud to solve the so called last mile problem via providing high\ud bandwidth Internet even to the rural areas for which the cable\ud deployment is very costly. The standard mainly focuses on the\ud MAC and PHY layer issues, supporting two transmission modes:\ud PMP (Point-to-Multipoint) and mesh modes. Mesh mode is an\ud optional mode developed as an extension to PMP mode and it\ud has the advantage of having an improving performance as more\ud subscribers are added to the system using multi-hop routes. In\ud 802.16 MAC protocol, mesh mode slot allocation and reservation\ud mechanisms are left open which makes this topic a hot research\ud area. Hence, the focus of this survey will mostly be on the mesh\ud mode, and the proposed scheduling algorithms and performance\ud evaluation methods