IEEE 802.15.3 隨意網路的快速建構演算法
A Prompt Formation Algorithm for IEEE 802.15.3 Ad Hoc Networks
Date Issued
2004
Date
2004
Author(s)
Hsieh, Kun-Lung
DOI
en-US
Abstract
Wireless Personal Area Networks (WPANs), a complimentary class of emerging technologies are used to convey information over short distances between individuals, their appliances and their environment. IEEE 802.15.3 is a standard designed for high data rate WPANs (20 Mb/s or more). It specifies the way to construct a small network that all of devices can communicate with each other in one hop that is called a "piconet." However, there is no practical scatter-net formation schemes currently specified in 802.15.3 standard for multi-hop communications. Bluetooth, today’s best known WPAN technology has a similar network structure as 802.15.3, and there are a great number of researches in literature. Due to neighbor discovering, adapting exiting Bluetooth formation algorithms to 802.15.3 will increase much formation time. Other existing clustering algorithms for ad-hoc networks carry the similar problems. This thesis addresses the issue with the following features: (1) A random superframe length is used to let devices hear multiple beacons in the common channels. (2) Every associated device creates a child piconet to interconnect non-overlapping piconets. (3) A code assignment algorithm is used to avoid inter-piconet interference. (4) A simple broadcast strategy realizes supporting upper layer routing protocol. Our protocol is also distributed and does not need neighbor information. The simulation results validate that our protocol performs better in the formation time.
Subjects
無線網路
隨意網路
建構
演算法
formation
802.15.3
algorithm
Type
thesis
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