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—The IEEE 802.16 is a standard for broadband wireless communication in Metropolitan Area Networks (MAN). To meet the QoS requirements of multimedia applications, the IEEE 802.16 standard provides four different scheduling services: Unsolicited Grant Service (UGS), real-time Polling Service (rtPS), non-real-time Polling Service (nrtPS), and Best Effort (BE).(More)
n a wireless mesh network (WMN) [1] end users are provided with wireless broadband connectivity by means of a predefined system hierarchy. The end terminals, also referred to as mesh clients (MCs), are connected to special nodes, called mesh routers (MRs). These nodes do not generate traffic, since they are simply meant to relay the packets of their MCs.(More)
IEEE 802.11 is a Media Access Control (MAC) protocol which has been standardized by IEEE for Wireless Local Area Networks (WLAN). The IEEE 802.11 MAC protocol offers two types of services to its users: synchronous and asynchronous. This paper thoroughly analyzes, by simulation, the asynchronous part alone, when each station feeds the MAC protocol with data(More)
— In wireless mesh networks, the end-to-end through-put of traffic flows depends on the path length, i.e. the higher the number of hops, the lower becomes the throughput. In this paper, a Fair End-to-end Bandwidth Allocation (FEBA) algorithm is introduced to solve this problem. FEBA is implemented at the Medium Access Control (MAC) layer of single-radio,(More)
Deficit Round-Robin (DRR) is a scheduling algorithm devised for providing fair queueing in the presence of variable length packets. The main attractive feature of DRR is its simplicity of implementation: in fact, it can exhibit <i>O</i>(1) complexity, provided that specific allocation constraints are met. However, according to the original DRR(More)
This paper thoroughly analyses the HIPERLAN MAC protocol, which is a standard for Wireless Local Area Networks (WLANs) defined by the European Telecommunications Standards Institute (ETSI). Since the HIPERLAN MAC protocol belongs to the class of Carrier Sensing Multiple Access with Collision Avoidance (CSMA/CA), in the first part of the paper we analyze the(More)