The Design and Performance of Wireless MAC Protocols
| Autor: | Pramod Pancha, Mark J. Karol, Zhao Liu |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
SIMPLE (military communications protocol)
Network packet business.industry Wireless network Computer science Quality of service Distributed computing ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Physical layer Bandwidth (computing) Overhead (computing) Wireless business Computer network |
| Zdroj: | Broadband Wireless Communications ISBN: 9783540762379 |
| DOI: | 10.1007/978-1-4471-1570-0_21 |
| Popis: | Medium access control (MAC) protocols attempt to efficiently and equitably allocate use of a shared communications channel to independent, competing users. Efficient sharing of a communications resource is particularly important in systems with scarce communications bandwidth, such as wireless networks. In this paper, we focus on some key design and performance issues associated with the DQRUMA (Distributed-Queueing Request Update Multiple Access) protocol. It is a simple, demand-assignment protocol that achieves near-optimal delay-throughput performance and has broad applicability. By separating packet scheduling from channel contention, it is also able to provide QoS guarantees. Although targeted primarily towards Wireless ATM systems, DQRUMA can be designed for use in other packet systems too. For example, it can support variable amounts of physical layer overhead and, at the same time, also support the transmission of variable-length packets. This modular slotted version of the DQRUMA protocol can provide a common MAC platform for many different systems with various operating conditions and requirements. |
| Databáze: | OpenAIRE |
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