A multimedia wireless multiple access protocol for mobile terminals

✍ Scribed by Noboru Iida; Takashi Watanabe; You Ueno; Tadanori Mizuno

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 292 KB
• Volume: 82
• Category: Article
• ISSN: 8756-6621
• DOI: 10.1002/(sici)1520-6424(199908)82:8<1::aid-ecja1>3.0.co;2-e

✦ Synopsis

A wireless multiple access protocol for multimedia traffic (MWMA) is discussed. MWMA is used when a large number of users dynamically migrating to/from a private network communicate multimedia messages with mobile terminals. The protocol uses a stable continual tree algorithm to reserve slots of a channel. MWMA assigns slots to real-time messages at high priority up to an upper limit in order to preserve a constant bandwidth for the messages, allocating the rest of the slots to non-real-time messages. Though the frame length is basically fixed, the protocol divides a frame into smaller frames after the assignment if several free slots are still available in order to decrease undesirable delay of non-real-time messages. The protocol uses a central control, which enables it to reduce energy restrictions on mobile terminals and to handle dynamic migration of mobile terminals and hidden terminals.