Publication Type
Magazine Article
Version
acceptedVersion
Publication Date
10-2003
Abstract
The concept of a forwarding node, which receives packets from upstream nodes and then transmits these packets to downstream nodes, is a key element of any multihop network, wired or wireless. While high-speed IP router architectures have been extensively studied for wired networks, the concept of a "wireless IP router" has not been addressed so far. We examine the limitations of the IEEE 802.11 MAC protocol in supporting a low-latency and high-throughput IP datapath comprising multiple wireless LAN hops. We first propose a wireless IP forwarding architecture that uses MPLS with modifications to 802.11 MAC to significantly improve packet forwarding efficiency. We then study further enhancements to 802.11 MAC that improve system throughput by allowing a larger number of concurrent packet transmissions in multihop 802.11-based IP networks. With 802.11 poised to be the dominant technology for wireless LANs, we believe a combined approach to MAC, packet forwarding, and transport layer protocols is needed to make high-performance multihop 802.11 networks practically viable.
Discipline
Software Engineering
Research Areas
Software and Cyber-Physical Systems
Publication
IEEE Wireless Communications
Volume
10
Issue
5
First Page
22
Last Page
28
ISSN
1536-1284
Identifier
10.1109/MWC.2003.1241091
Publisher
IEEE
Citation
ACHARYA, Arup; MISRA, Archan; and BANSAL, Sorav.
High-performance architectures for IP-based multihop 802.11 networks. (2003). IEEE Wireless Communications. 10, (5), 22-28.
Available at: https://ink.library.smu.edu.sg/sis_research/729
Copyright Owner and License
Authors
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1109/MWC.2003.1241091