WLL link layer protocol for QoS support of multi-service internet

Pham, Huan, Lavery, Bill, and Nguyen, Hoang Nam (2001) WLL link layer protocol for QoS support of multi-service internet. In: Lecture Notes in Computer Science (2093) pp. 37-44. From: First International Conference on Networking, July 9-13 2001, Colmar, France.

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Wireless Local Loop (WLL) such as LMDS typically has timevarying and high Bit Error Rate (BER) channel characteristics [1-3]. To provide Internet service over a such link, error protection mechanisms at link layer are necessary [4-6]. However, since different services provided by higher layers require different link layer behavior, a multi-service link layer architecture is needed, as has been proposed in [7]. The later assigns transmission bandwidth in proportion to network layer allocation independent of arbitrary overhead rates. As a different approach, we propose a WLL link layer architecture and protocol that assign transmission bandwidths according to services' priorities and their actual bandwidth needs (taking in to account network layer allocation as well as any overhead occurred). This new model keeps track of the current status of each link service, such as link service overhead rates, and informs the network layer. We argue that our link layer architecture and protocol more effectively support QoS services implemented at higher layers, especially those that require hard QoS guarantees (such as guaranteed service in IntServ model [9] and Expedited Forwarding (EF) service in DiffServ [10]).

Item ID: 14606
Item Type: Conference Item (Research - E1)
ISSN: 0302-9743
Keywords: link layer protocol; QoS support
Date Deposited: 08 Jan 2018 01:08
FoR Codes: 09 ENGINEERING > 0906 Electrical and Electronic Engineering > 090609 Signal Processing @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8999 Other Information and Communication Services > 899999 Information and Communication Services not elsewhere classified @ 100%
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