Dynamic Hop Service Differentiation model for end-to-end QoS provisioning in multi-hop wireless networks
- Authors
- Youn, Soo-Sang; Seok, Seung-Joon; Kang, Chul-Hee
- Issue Date
- 5월-2008
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Keywords
- multi-hop wireless networks; quality-of-service (QoS) model; 802.11e EDCA; soft-QoS provisioning
- Citation
- IEICE TRANSACTIONS ON COMMUNICATIONS, v.E91B, no.5, pp.1349 - 1359
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEICE TRANSACTIONS ON COMMUNICATIONS
- Volume
- E91B
- Number
- 5
- Start Page
- 1349
- End Page
- 1359
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/123700
- DOI
- 10.1093/ietcom/e91-b.5.1349
- ISSN
- 0916-8516
- Abstract
- This paper presents a new QoS model for end-to-end service provisioning in multi-hop wireless networks. In legacy IEEE 802.11e based multi-hop wireless networks, the fixed assignment of service classes according to flow's priority at every node causes priority inversion problem when performing end-to-end service differentiation. Thus, this paper proposes a new QoS provisioning model called Dynamic Hop Service Differentiation (DHSD) to alleviate the problem and support effective service differentiation between end-to-end nodes. Many previous works for QoS model through the 802.11e based service differentiation focus on packet scheduling on several service queues with different service rate and service priority. Our model, however, concentrates on a dynamic class selection scheme, called Per Hop Class Assignment (PHCA), in the node's MAC layer, which selects a proper service class for each packet, in accordance with queue states and service requirement, in every node along the end-to-end route of the packet. The proposed QoS solution is evaluated using the OPNET simulator. The simulation results show that the proposed model outperforms both best-effort and 802.11e based strict priority service models in mobile ad hoc environments.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.