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In this paper, we consider an uplink multiservice networks employing Orthogonal Frequency Division Multiple Access (OFDMA) for WiMAX networks. Since the OFDMA physical resource available for scheduling is frame by frame, the uplink scheduler located at base station (BS) must efficiently allocate available resources to the subscriber stations (SSs) in response to constant or bursty data traffic on...
IEEE 802.16 network has quickly been deployed in worldwide in recent years. However the signal transmitted by the Base Station is susceptible to shadows of buildings, therefore resulting in a poor signal quality received by Mobile Station. For this reason, IEEE 802.16j intends to improve the above mentioned network problems incurred from IEEE 802.16 through relay station. This allow IEEE 802.16j network...
IEEE 802.16 wireless networks, known as WiMAX, employ a mechanism for guaranteed time allocation to mobile stations in order to meet the different quality of service requirements for service flows. The base station allocates contention-based time slots for the stations to transmit their requests for additional bandwidth. Each contention time slot can accommodate a single transmission if there is no...
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