Anthony C. C. Lo

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Recently, indoor positioning systems (IPSs) have been designed to provide location information of persons and devices. The position information enables location-based protocols for user applications. Personal networks (PNs) are designed to meet the users’ needs and interconnect users’ devices equipped with different communications technologies in various(More)
Machine-to-Machine (M2M) communications enable one or more autonomous machines to communicate directly with one another without human intervention. M2M applications include smart grid, healthcare and intelligent Transportation System. However, past and present wireless technologies have been engineered for Human-to-Human (H2H) communications, in particular,(More)
Universal Mobile Telecommunications System (UMTS) is a third-generation mobile communications system that supports wireless wideband multimedia applications. This paper investigates the video quality attained in streaming MPEG-4 video over UMTS networks using an integrated tool environment, which comprises an MPEG-4 encoder/decoder, a network simulator and(More)
Universal mobile telecommunications system (UMTS) is a third-generation mobile communication system that supports wireless wideband multimedia communications. This paper investigates the performance of streaming MPEG-4 video over UMTS dedicated channels with varying channel conditions. In order to evaluate the performance, simulation models for UMTS and(More)
Advanced relaying technologies are part of the next-generation wireless broadband network architecture. In this paper, we derive the average capacity expressions of in-band full-duplex relays operating in the Amplify-and-Forward (AF) and the Decode-and-Forward (DF) modes in the present of spatial diversity. The capacity of the in-band full-duplex AF and DF(More)
A power grid has four segments: generation, transmission, distribution and demand. Until now, utilities have been focusing on streamlining their generation, transmission and distribution operations for energy efficiency. While loads have traditionally been a passive part of a grid, with rapid advances in ICT, demand-side technologies now play an(More)
A Personal Network (PN) is a new concept related to pervasive computing with a strong user-focused view. Whereas several existing technologies can offer solutions to part of a person’s future communication needs, there is very little work on combining these technologies into something a normal user can handle. It will undoubtedly be the network layer that(More)
Spectrum sensing mechanisms enable cognitive radio networks to detect primary users (Upsi) and utilize spectrum holes for secondary user (SU) transmission. However, precise PU detection leads to longer sensing time and lower achievable throughput. In this paper, we propose a particle swarm optimization (PSO)-based scheme for an in-band local spectrum(More)