Resource allocation strategies for message traffic in wireless multimedia communications

✍ Scribed by Masugi Inoue; Hiroyuki Morikawa; Moriyuki Mizumachi

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 470 KB
• Volume: 83
• Category: Article
• ISSN: 8756-6621
• DOI: 10.1002/(sici)1520-6424(200004)83:4<21::aid-ecja3>3.0.co;2-d

✦ Synopsis

In the development of the MAC (media access control) layer protocol in wireless multimedia communication, it will be necessary to consider compatibility with future cable networks which will provide guaranteed service and best-effort service. This paper focuses on a resource allocation procedure to contain the best-effort class in the ALOHA reservation-type MAC protocol, and presents two allocation algorithms, namely, MAF (monopolistic allocation to the first-in terminal) and ES (equal sharing). As to the best-effort class, an algorithm is desired that provides high throughput and fairness, as far as possible, although it is not necessary to guarantee QoS. From those points of view, the two algorithms are compared in terms of the average throughput, the throughput variance, and so forth. The message (data) is modeled based on electronic mail on the Internet and Web pages. It is found that the ES algorithm is suited to the best-effort class, because it can realize high average throughput and low throughput variation, although the computational complexity is high. It is also found that the difference between the two algorithms is enhanced in a burst error environment at the packet level, becoming more marked in high-speed wireless transmission.