On the Ranging and Scheduling of Data Traffic in OFDMA Mobile Environments

In the last years the wireless metropolitan area networks have increased their popularity and attracted the interest of the most important research groups all over the world. Several standards have been defined, in particular IEEE 802.16 has taken a relevant role in achieving a full-service broadband wireless network all over a urban and suburban area. This paper deals with the resource allocation problem by considering the resource request and data scheduling of the active stations. The considered scenario is foreseen in an urban environment where multiple stations can move around the Base Station. The proposed scheduling algorithms exploit the orthogonal frequency division multiple access scheme with adaptive modulation techniques for maximizing the network performance. The performance results have been obtained by resorting to theoretical analysis and computer simulations.