دانلود رایگان پاورپوینت پهنای باند و تشخیص نوع بسته طرح برای 40-50GHz (انگلیسی)

Bandwidth and Packet Type Detection Schemes for 40-50GHz Millimeter Wave Communication Systems
Introduction
Motivations
Preamble Design (1/3)
Simulations
AWGN Simulation Results (1/5)
AWGN Performance Summary
ReferencesAWGN
Simulation Results
Exp 4ns Simulation Results
Exp 10ns Simulation Results
CE Schemes
Simulation Setup
AWGN
Exp 4ns
Exp 10ns
Comments

Motivations

In 45 GHz systems, there are multiple transmission schemes with three different packet formats and two kinds of bandwidth
Why bandwidth auto-detection in preamble?
RX can perform channel estimation on only the occupied bandwidth other than the maximum transmission bandwidth
Also, especially for single carrier packets, since there are no other training fields allowing RX to update channel estimation for different bandwidth
Why packet format auto-detection in preamble?
With packet type knowledge before channel estimation and PHY header decoding, RX does NOT have to perform parallel decoding for multiple possible packet formats