145views more  TOMCCAP 2011»
12 years 9 months ago
A framework for cross-layer optimization of video streaming in wireless networks
tion problem in two steps. First, we formulate an abstract optimization problem for video streaming in wireless networks in general. This formulation exposes the important interact...
Cheng-Hsin Hsu, Mohamed Hefeeda
180views more  WINET 2010»
13 years 1 months ago
An analytical model for performance evaluation of multimedia applications over EDCA in an IEEE 802.11e WLAN
—We extend the modeling heuristic of [1] to evaluate the performance of an IEEE 802.11e infrastructure network carrying packet telephone calls, streaming video sessions and TCP c...
Sri Harsha, Anurag Kumar, Vinod Sharma
151views more  JISE 2008»
13 years 2 months ago
Design of QoS and Admission Control for VoIP Services Over IEEE 802.11e WLANs
Supporting telephone services using wireless LAN as the access network is an important application nowadays. The SIP and IEEE 802.11e are the two most promising protocols to suppo...
Pei-Yeh Wu, Jen-Jee Chen, Yu-Chee Tseng, Hung-Wei ...
13 years 3 months ago
Cheating on the CW and RTS/CTS Mechanisms in Single-Hop IEEE 802.11e Networks
This paper presents a work in progress which deals with the problem of node misbehaviour in ad-hoc networks. A realistic approach is used to determine the impact of contention wind...
Szymon Szott, Marek Natkaniec, Andrzej R. Pach
13 years 4 months ago
Assessing the Effectiveness of IEEE 802.11e in Multi-Hop Mobile Network Environments
The IEEE 802.11e technology is receiving much interest due to the promising enhancements it will offer to wireless local area networks in terms of QoS support. Until now, research...
Carlos Miguel Tavares Calafate, Pietro Manzoni, Ma...
13 years 4 months ago
Increasing wireless revenue with service differentiation
New technologies such as IEEE 802.16 (Wi-MAX) [2] and IEEE 802.11e (Wi-Fi with QoS) [1] enable differentiated services. In this study we explore the potential for increasing the r...
Siamak Ayani, Jean C. Walrand
13 years 4 months ago
ns-2 vs. OPNET: a comparative study of the IEEE 802.11e technology on MANET environments
In this work we present the results of a comparative study between two well-known network simulators: ns-2 and OPNET Modeler. In particular, we focus on a performance evaluation o...
P. Pablo Garrido, Manuel P. Malumbres, Carlos Migu...
13 years 8 months ago
An enhanced HCF for IEEE 802.11e wireless networks
In this paper the behavior of the upcoming MAC protocol for wireless LANs IEEE 802.11e is investigated. Based on the results, we propose an enhancement for Hybrid Coordination Fun...
Balasubramanian Appiah Venkatakrishnan, S. Selvake...
13 years 8 months ago
A Per-Class QoS Service Model in IEEE 802.11e WLANs
Abstract -- In this paper, we study the provision of perclass QoS for IEEE 802.11e Enhanced Distributed Channel Access (EDCA) WLANs. We propose two mechanisms, called BIWF-SP and I...
Jeng Farn Lee, Wanjiun Liao, Meng Chang Chen
13 years 8 months ago
On the Interaction Between IEEE 802.11e and Routing Protocols in Mobile Ad-Hoc Networks
The upcoming IEEE 802.11e standard was developed to offer QoS capabilities to WLAN, offering significative improvements to multimedia traffic. MANETs will also benefit from thi...
Carlos Miguel Tavares Calafate, Pietro Manzoni, Ma...