Lecture 1: Introduction. Professor Honggang Wang. http://www.faculty.umassd.edu/honggang.wang/teaching.html Email:[email protected] Outline. Reasons to take this class Syllabus Course goals Introduction Survey. Three Reasons to Take This Class.
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(e.g., protocol design, wireless and mobile device development)
“People and their machines should be able toaccess information and communicate with each othereasily and securely, in any medium or combination ofmedia – voice, data, image, video, or multimedia – anytime, anywhere, in a timely, cost-effective way.”
Dr. G. H. Heilmeier, Oct 1992
. . . -> PCs -> laptop -> PDAs/smart phones -> embeddedcomputers/sensors
No clear separation between device types possible
(e.g. smart phones, embedded PCs, …)
UMTS Rel. 5
GSM 53 kbit/s
Bluetooth 500 kbit/s
GSM/EDGE 135 kbit/s,
WLAN 780 kbit/s
UMTS Rel. 6
GSM 115 kbit/s,
WLAN 11 Mbit/s
Traditional ECG system
Wireless ECG system
Software GUI interface
Wireless ECG medical sensor
GSM/UMTS, cdmaOne/cdma2000,WLAN, GPS
DAB, TETRA, ...
Network Wireless Networks
Often we need to implement a function across multiple layers.