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TCOM
2008
13 years 7 months ago
2008
Abstract--A robust frequency-hopping system with noncoherent detection, iterative turbo decoding and demodulation, and channel estimation is presented. The data modulation is the s...
JNW
2007
13 years 7 months ago
2007
- Recent technological advances provide an excellent opportunity to achieve truly effective results in the field of open Internet devices, also known as Open Routers or ORs. Even t...
TWC
2008
13 years 7 months ago
2008
Carrier frequency synchronization is critical to the quality of signal reception in OFDM systems. This paper presents an approximate maximum-likelihood (ML) carrier frequency offse...
TIP
2002
13 years 7 months ago
2002
In this paper, we have derived analytic expressions for the phase correlation of downsampled images. We have shown that for downsampled images the signal power in the phase correla...
WWW
2011
ACM
13 years 2 months ago
2011
ACM
Online social networks have become very popular in recent years and their number of users is already measured in many hundreds of millions. For various commercial and sociological...