Announced dynamic access probability protocol for shared bandwidth networks
US6418136B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1998 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Nov 18, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/006
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and a method for a dynamic probability access protocol for determining access to shared channels. Some networks have a common channel which is shared by many users. A key issue in such networks is the allocation of the shared channel among many competing users. The system and method of the present invention enable media access control in shared bandwidth networks. When the user wishes to send a message, the user transmits with a probability p, which depends on the load on the channel. The probability p is announced by the network, and transmitted to the users as a broadcast message. Under conditions of low load, the probability p approaches 1, while at high load p is relatively low. This media access control protocol guarantees high channel utilization at high load, as well as low delay at low load periods. The proposed method is applicable on wireless networks, such as cellular networks and satellite-based networks. In addition, the method and system of the present invention can be used in wired networks, for other applications such as local area networks (LAN), client/server networks, and accessing a Web site through the Internet. The method and system of the present inv…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.