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IEEE 802.16 based Worldwide Interoperability for Microwave Access networks (WiMAX) are increasingly being deployed for last hop broadband wireless access. In order to provide the high speed access to information resources broadband technology like WiMAX is needed. In this paper we compared different uplink scheduling algorithms of WiMAX mainly maximum carrier to interference and noise (Max C/I) algorithm...
IEEE 802.16 systems provide broadband wireless access to subscriber stations (SSs). An 802.16 wireless system can operate in mesh mode, where SSs form a multihop network to the base station. The centralized scheduling mechanism defined in the standard provides contention-free and resource-guarantee transmission services in mesh mode. However, the corresponding algorithm to this scheduling service...
In this paper, we propose a radio resource scheduling algorithm for a scheduler in IEEE 802.16 orthogonal frequency division multiple access (OFDMA) specification. The scheduler dynamically allocates slots considering wireless channel conditions of subscriber stations to improve radio resource utilization efficiency. The results show that with the proposed algorithm, smaller radio resources are used...
In IEEE 802.16e system, most of existing scheduling algorithms focus on the real time services, while few of them have particularly considered the best-effort (BE) service. Since the BE service class is defined for non-realtime traffic with the lowest priority among all 802.16e scheduling services, it corresponds to applications with no specific rate or delay requirement. However, considering the...
This work proposes an algorithm to perform the resource allocation in the uplink of an IEEE802.16 standard-based system. The approach is valid for point to multi-point (PMP) and also for tree-deployed mesh networks, already defined for the Worldwide Interoperability for Microwave Access (WiMax). Our solution is based on a proportionally fair distribution of resources and it is formulated using the...
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