approximation channels
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Short Range Wireless Channel Prediction Using Local Information
White Paper The primary contribution of this paper is a low complexity channel prediction method using polynomial approximation. Wireless channels change due to the mobility of users, which coupled with system... [26 Apr 2007]
Detrimental Effects of Filtering in an OFDM System Using Pilot Based Channel Estimation
White Paper By making use of standard Gaussian approximation to the interference for the AWGN channel, the paper illustrates how to estimate the symbol error rate of a M-QAM system. By using an improved Gaussian... [18 Apr 2007]
Low-Complexity Time-Domain ICI Equalization for OFDM Communications Over Rapidly Varying Channels
White Paper This allows a low-complexity implementation without introducing any systematic channel approximation errors. This paper considers wireless OFDM communications over rapidly varying channels as occurring... [11 Apr 2007]
Characterizing Achievable Rates in Multi-Hop Wireless Mesh Networks With Orthogonal Channels
White Paper The authors develop efficient and easy to implement Fully Polynomial Time Approximation Schemes for solving the routing problem. This paper considers the problem of determining the achievable rates in multi-hop wireless... [13 Dec 2006]
Multi-Antenna Channel-Hardening and Its Implications for Rate Feedback and Scheduling
White Paper The analysis requires an accurate approximation of the distribution of the MIMO channel mutual information. Such Multiple-Input Multiple-Output (MIMO) channels can then be used in conjunction with... [07 Dec 2006]
Improved Performance Analysis for Maximal Ratio Combining in Asynchronous CDMA Channels
White Paper In the previous research, compromising assumptions have been made to simplify the analysis, including a Gaussian approximation for interference or constant equal cross correlations. Direct Sequence Code Division Multiple... [17 May 2006]
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