A Centralized Routing Scheme Supporting Ad Hoc Networking in Dual Mode HIPERLAN/2
Athanasios Vaios, Κωνσταντίνος Οικονόμου, Ioannis Stavrakakis · 2003
The IST project BroadWay introduces ad hoc functionality at 60 GHz in the traditional 5 GHz HIPERLAN/2. The dual mode of operation primarily aims at offloading the 5 GHz cell of HIPERLAN/2 in very dense urban deployments. The peculiarities of the BroadWay system make the development of a routing scheme a challenging task. This paper explores the routing perspectives of the BroadWay system and describes the centralized routing scheme for the dual mode HIPERLAN/2. Neighborhood discovery and route selection are the basic components of the centralized routing scheme, where the Access Point (AP) is responsible for allocating the resources and establishing the routes at both 5 and 60 GHz. BroadWay introduces modifications to the MAC of HIPERLAN/2 regarding new messages and framing considerations at both frequency bands in order to allow for the new routing functionalities.