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Smart Home works at the customer domain of the Smart Grid. It aims to provide an interactive environment in which direct communication with end-users can be easily done. Home Area Network adopts Low-Rate Wireless Personal Area Networks (LR-WPANs) to realize the automatic control of lighting system, safety system, smart appliances, smart devices, etc. This paper discusses the architecture of Home Automation,...
This paper focuses on studying the performance of TPGF geographic routing algorithm with multi routing metric called McTPGF in random duty-cycled wireless multimedia sensor networks (WMSNs). The multi-metric contains the geographic distance and the time, which is called sleeping-delay in this paper, the forwarding node waits to forward packet to the neighbor node after it wakes up. We recognize the...
This paper presents a proposed architecture for a MultiPoint-to-MultiPoint routing algorithm for large-scale high-speed networks. This algorithm builds a bi-directional multicast tree. The tree is shared among multicast group members. The presented architecture is useful for multicast applications within a single autonomous domain. It requires full topology and group membership knowledge. It considers...
In this paper, we present a stateless multi-server guaranteed rate scheduling service model that utilizes multiple, asymmetric wireless channels to maximize service guarantees for in-elastic flows. One of the major consequences of multichannel flow forwarding is the increased intra-path and inter-path end-to-end delay variations between successive packets of a stream. These variations cause problems...
Several geographic routing protocols using location information have already been proposed for ad hoc networks in order to improve performance of ad hoc routing protocols. Here we can mention the case of greedy perimeter stateless routing (GPSR) protocol. GPSR makes greedy forwarding decisions using merely information about a router's immediate neighbors in the network topology. In case a packet reaches...
Constrained by the interior properties of underwater acoustic channels such as limited bandwidth, time-varying multipath propagation, and large propagation delay, the design of multiple access (MAC) protocols for underwater acoustic sensor networks (UWSN) poses significant challenges. Existing MAC protocols for UWSNs exhibit very low performance in channel utilization, throughput and end-to-end delay,...
An opportunistic large array (OLA)-based reactive routing protocol, which we call OLA routing on-demand (OLAROAD), is investigated for mobile ad hoc networks for varying node densities. An OLA is a simple form of cooperative transmission (CT) in which a group of simple relays or forwarding nodes operate without any mutual coordination, but naturally fire together in response to energy received from...
This paper presents a comparative study between JET (Just Enough Time) and a number of new preemptive channel scheduling algorithms in optical burst switching (OBS) with QoS (Quality of Service) requirement. In terms of performance criteria, loss rate in byte, access delay and end-to-end delay are considered. A 2-state MMPP (Markov Modulated Poisson Process) traffic generator on a 14-node mesh network...
In this paper we have proposed an adaptive scheduling algorithm to suit group mobility scenarios in the mobile WiMAX. The QoS scheduling scheme aims to minimize the end-to-end delay for real-time traffic. IEEE 802.16e is a wireless broadband network standard aimed at providing robust, high data rate mobile communication. The issue of group mobility in mobile WiMAX networks has not been explored so...
Routing protocols that can facilitate application- specific service guarantee in wireless sensor networks (WSN) constitute one of the key design objectives of current WSN research. Since energy-efficient routing protocols in literature do not offer a complete framework for service differentiation, a newer approach is warranted. Formulating such routing approach requires the adoption of different cost...
Perviously, we studied RTT measurement method in mobile multi-homed end-to-end transport. End-to-end delay is a primary concern for real-time applications and asymmetric-path selection has some special characteristic to symmetric-path. Based on this, we propose an algorithm called Minimum RTT Asymmetric-Path First (MRAPF) for end-to-end transport path selection that takes into account the dynamic...
End-to-end delay and loss probability are two important parameters for evaluating the performance of multihop ad hoc networks. One of the main reasons for increasing the value of those parameters; is the buffer management scheme in the intermediate nodes. The number of hops that the packet traversed is not taken into account in most existing buffer management schemes. Dropping a packet which traversed...
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