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ETT
2000
83views Education» more  ETT 2000»
13 years 4 months ago
Digital Signal Processing
Thomas J. Cavicchi, Umberto Spagnolini
ETT
2000
67views Education» more  ETT 2000»
13 years 4 months ago
Randomized OFDM for Multi-Cell Environments
: This paper is concerned with a randomized OFDM (R-OFDM) scheme. The basic principle is to apply a scrambling operation to several OFDM frames. With a proper design strategy, the ...
Li Ping
ETT
2000
106views Education» more  ETT 2000»
13 years 4 months ago
On Union Bounds for Random Serially Concatenated Turbo Codes with Maximum Likelihood Decoding
The input-output weight enumeration (distribution) function of the ensemble of serially concatenated turbo codes is derived, where the ensemble is generated by a uniform choice ov...
Igal Sason, Shlomo Shamai
ETT
2000
70views Education» more  ETT 2000»
13 years 4 months ago
SS-MC-MA Systems with Pilot Symbol Aided Channel Estimation in the Asynchronous Uplink
Spread spectrum multi-carrier multiple access (SS-MC-MA) systems exploit in a similar manner as MC-CDMA systems the advantages of the diversity gain due to the spread spectrum tech...
Stefan Kaiser, Witold A. Krzymien, Khaled Fazel
ETT
2000
103views Education» more  ETT 2000»
13 years 4 months ago
Analysis of Doppler Spread Perturbations in OFDM(A) Systems
We analyze the effects of Doppler spread in mobile channels on Orthogonal Frequency Division Multiplex (OFDM) systems. This is important, since channel variations during one OFDM s...
Patrick Robertson, Stefan Kaiser