Vincent W. S. Wong

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Most of the existing demand side management programs focus primarily on the interactions between a utility company and its customers/users. In this paper, we present an autonomous and distributed demand side energy management system among users that takes advantage of a two-way digital communication infrastructure which is envisioned in the future smart(More)
The next generation wireless networks will support the vertical handoff mechanism in which users can maintain the connections when they switch from one network to another (e.g., from IEEE 802.11b to CDMA 1xRTT network, and vice versa). Although various vertical handoff decision algorithms have been proposed in the literature recently, there is a lack of(More)
The heterogeneity is one of the key characteristics of the future wireless networks. How to provide terminal users with the best connection anytime and anywhere become more important. In this paper, a vertical handoff decision algorithm for the heterogeneous wireless networks is proposed based on the Markov Decision Process (MDP). First the factors which(More)
The aggregate capacity of wireless mesh networks can be increased by the use of multiple channels. Stationary wireless routers are equipped with multiple network interface cards (NICs). Each NIC is assigned with a distinct frequency channel. In this paper, we formulate the Joint Optimal Channel Assignment and Congestion Control (JOCAC) as a decentralized(More)
In the future smart grid, both users and power companies can potentially benefit from the economical and environmental advantages of smart pricing methods to more effectively reflect the fluctuations of the wholesale price into the customer side. In addition, smart pricing can be used to seek social benefits and to implement social objectives. To achieve(More)
This article presents a survey on location management algorithms for the next generation personal communication networks (PCNs). We first describe different static and dynamic location update algorithms. Then we discuss various selective paging strategies. We also present various modeling techniques that have been used for the performance analysis of(More)
The energy consumption is a key design criterion for the routing protocols in wireless sensor networks. Some of the conventional single path routing schemes may not be optimal to maximize the network lifetime and connectivity. In this paper, we propose a distributed, scalable and localized multipath search protocol to discover multiple node-disjoint paths(More)
Many applications in wireless sensor networks require sensor nodes to obtain their absolute or relative geographical positions. Although various localization algorithms have been recently proposed, most of them require nodes to be equipped with range-determining hardware to obtain distance information. In this paper, we propose a concentric anchor beacon(More)
Most current routing protocols for mobile ad hoc networks consider the shortest path with minimum hop counts as the optimal route. However, the minimum end-to-end delay from source to destination may not always be achieved through this shortest path. In this paper, we propose an efficient Delay-based Load-Aware On-demand Routing (D-LAOR) protocol, which(More)
In a wireless mesh network (WMN) with a number of stationary wireless routers, the aggregate capacity can be increased when each router is equipped with multiple network interface cards (NICs) and each NIC within a router is assigned to a distinct orthogonal frequency channel. In this paper, given the logical topology of the network, we formulate the joint(More)