Control of the Interworking Between Packet Reservation Multiple Access and Dynamic Carrier Allocation

Abstract

This work deals with an enhanced frequency division multiplex/packet reservation multiple access (FDM/PRMA) technique for cellular systems also suitable for wireless local area networks (WLANs); such enhancements consist of an efficient control of the interworking between dynamic carrier allocation (DCA) strategies, which guarantee a real-time rearrangement of the carriers-to-cells assignment and PRMA techniques. This allows a higher carrier exploitation. In this respect, the novelties introduced in this paper are: (i) the definition of a short-term packet dropping probability which permits the real-time assessment of the link quality of a PRMA carrier; (ii) the determination of a procedure the base station (BS) can follow in order to perform a real-time estimation of the above-mentioned short-term parameter; (iii) an efficient carrier management and interworking between the DCA mechanism and the PRMA technique realized by means of such parameter. The paper also shows simulation results highlighting a remarkable improvement of the carrier utilization, obtained by the proposed interworking of the DCA and PRMA techniques.