WiMedia和UWB Forum超寬頻媒介存取控制層之研究與比較
Comparison of MAC Layer Mechanisms for WiMedia UWB and UWB Forum
Date Issued
2006
Date
2006
Author(s)
Chen, Chien-Yu
DOI
en-US
Abstract
Ultra-wide band (UWB) is a wireless communication technology under widely discussed recently. It can provide high transmission rate from hundreds of Mbps up to Gbps level. Combine the characteristics of high data rate, low transmission power, and short range coverage, UWB is considered to be suitable for the WPAN and received significant interests for future wireless communication from both academia and industry. The application of UWB includes wireless USB and wireless transmission of digital content in digital home. There are two main UWB standards existed, WiMedia Alliance UWB and UWB Forum. WiMedia UWB uses multi-band OFDM as its physical layer while UWB Forum adopts pulsed based direct-sequence UWB for its physical layer technology.
MAC layer is on the top of the physical layer and is responsible for medium assess control mechanisms such as medium access and sharing, admission control, scheduling, power management, security, and so on. It affects the efficiency of the system performance a lot and may be waste of the bandwidth provides by the physical layer if it does not define carefully.
We are going to look into the MAC layer mechanisms of both the alliances. By studying the MAC layer respectively, it’s possible to obtain the common and different parts of them, which gives us insight of the performance and direction of the future research issues. We provide a comprehensive overview on MAC layer and have a detail comparison between both systems.
Subjects
超寬頻
無線個人區域網路
UWB
WiMedia
UWB Forum
WPAN
Type
thesis
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