Tham khảo tài liệu 'wireless mesh networks 2010 part 12', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 10 Virtual Home Region Multi-hash Location Management Service VIMLOC for Large-Scale Wireless Mesh Networks1 J. Mangues-Bafalluy M. Requena-Esteso J. Nunez-Martinez and A. Krendzel Centre Tecnològic de Telecomunicacions de Catalunya CTTC Av. Carl Friedrich Gauss 7 - 08860 Castelldefels - Barcelona Spain 1. Introduction Wireless mesh networks WMNs have recently received much attention not only from the research community but also from municipalities or non-tech-savvy user communities willing to build their own all-wireless network. One of the factors that has helped in making WMNs become popular is the widespread availability of low-cost wireless equipment and particularly IEEE WLAN equipment. However making these WMNs operationally efficient is a challenging task. In this direction there has been a lot of work on the research issues highlighted in Akyildiz Wang 2005 . Nevertheless such research topic as mobility management did not receive as much attention as others . channel assignment or routing . In general mobility management is split into two main functions namely handoff management and location management. The former deals with maintaining the communication of the mobile node MN while re- attaching to a new attachment point whilst the latter deals with locating the MN in the network when a new communication needs to be established. Related to mobility and at an architectural level a common belief in the research community is that unlike in an IP context node identifiers and addresses . the current location in the network of those nodes should not be integrated into a single identifier. The main purpose of this is to enable designing efficient mobility management schemes and as part of them efficient location management schemes location services . This is particularly challenging in large-scale WMNs due to the state information that must be stored in the nodes and the associated control overhead sent through the network. Related to this .