March 2006
Vol. 20 No.2
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Multimedia over Broadband Wireless Networks |
| John Apostolopoulos, Marco Conti, Archan Misra |
Seamless SIP-Based Mobility for Multimedia Applications
The handoff procedure with SIP suffers from undesirable delay and hence packet loss in some cases, which is detrimental to applications like voice over IP (VoIP) or streaming video that demand stringent quality of service (QoS) requirements.
Nilanjan Banerjee, Motorola India Research Labs; Arup Acharya, IBM T. J. Watson Research Center; Sajal K. Das, The University of Texas at ArlingtonAsynchronous and Reliable On-Demand Media Broadcast
The authors discuss wireless broadcasting of multimedia streams within a framework that allows asynchronous media access.
Hrvoje Jenkac, Munich University of Technology; Thomas Stockhammer, Nomor Research; Wen Xu, BenQ mobileMultiuser Cross-Layer Resource Allocation for Video Transmission over Wireless Networks
With the advancement of video compression technology and the wide deployment of wireless networks, there is an increasing demand for wireless video communication services, and many design challenges remain to be overcome.
Guan-Ming Su, Zhu Han, Min Wu, and K. J. Ray Liu, University of Maryland, College ParkCosts and Benefits of Fading for Streaming Media over Wireless
The authors discuss some salient aspects of the wireless channel, and the challenges and opportunities they pose for streaming media. They also discuss how channel, source, and application-dependent concepts such as multiuser diversity, opportunistic communications, loss tolerance, and differing application-dependent delay constraints can be exploited to pose new and useful constructs for streaming media over wireless.
Stark C. Draper, University of California; Mitchell D. Trott, Hewlett-Packard LaboratoriesAdaptive Streaming within the 3GPP Packet-Switched Streaming Service
The authors give an overview of the PSS 0standard and in particular the support for adaptive streaming in PSS, with an example of 3GPP PSS-compliant adaptive streaming performed in a real client/server implementation.
Per Fröjdh, Uwe Horn, Markus Kampmann, Anders Nohlgren, and Magnus Westerlund; Ericsson ResearchMedia Handling Aspects of Multimedia Conferencing in Broadband Wireless Ad Hoc Networks
The authors focus on the media handling aspects of multimedia conferencing in broadband wireless ad hoc networks, with a critical review of the state of the art and a proposed novel architecture.
Dhafer Ben Khedher, Concordia University ; Roch H. Glitho, Ericsson and Concordia University; Rachida Dssouli, Concordia UniversityQuality of Service Support in IEEE 802.16 Networks
The authors focus on mechanisms that are available in an 802.16 system to QoS and whose effectiveness is evaluated through simulation.
Claudio Cicconetti, Luciano Lenzini, and Enzo Mingozzi, University of Pisa; Carl Eklund, Nokia Research Center
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Also in this issue |
Optimizing TCP and RLC Interaction in the UMTS Radio Access Network
The authors describe the most relevant issues concerning TCP–RLC interaction and evaluate the most practical enhancement approaches, based on optimum parameter configuration at the transport and link layers.
Juan J. Alcaraz, Fernando Cerdan, and Joan García-Haro, Polytechnic University of Cartagena