الفهرس Only 14 pages are availabe for public view
 |  | from | 89 |  |  |
| | | from | 89 | | |
Abstract
The past several years have witnessed a rapid growth of wireless networking. However, up to now wireless networking has been mainly focused on high-speed communications, and relatively long range applications such as the IEEE 802.11 Wireless Local Area Network (WLAN) standards. The first well known standard focusing on Low-Rate Wireless Personal Area Networks (LR-WPAN) was Bluetooth. However it has limited capacity for networking of many nodes. There are many wireless monitoring and control applications in industrial and home environments which require longer battery life, lower data rates and less complexity than those from existing standards. For such wireless applications, the new IEEE 802.1 S.4 standard - commercially known as ZigBee - has been
developed.
This thesis explores the design of a low-power baseband Modem for ZigBee, employing techniques such as hardwired algorithms, clock gating and subsystem shutdown. The design of the demodulator and its underlying signal processing algorithms have been thoroughly discussed. The performance of the proposed algorithms has been investigated. A Prototype was built on an FPGA platform, in order to verify functionality and estimate the chip area needed and consequently it’s expected power consumption.