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ETT
2000
103views Education» more  ETT 2000»
8 years 7 months ago
Dynamic Rate Shaping on MPEG-2 Video Streams for Bandwidth Saving on a Faded Satellite Channel
In a previous work, we studied how to send a video stream over a noisy satellite channel using the scalability features of the MPEG-2 standard. The base and the enhancement flows w...
Nedo Celandroni, Erina Ferro, Francesco Potorti, A...
ETT
2000
83views Education» more  ETT 2000»
8 years 7 months ago
Digital Signal Processing
Thomas J. Cavicchi, Umberto Spagnolini
ETT
2000
103views Education» more  ETT 2000»
8 years 7 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
ETT
2000
67views Education» more  ETT 2000»
8 years 7 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»
8 years 7 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
149views Education» more  ETT 2000»
8 years 7 months ago
Channel Allocation with Recovery Strategy in Wireless Networks
With the increasing penetration of wireless communications systems, customers are expecting the same level of service, reliability and performance from the wireless communication s...
Yue Ma, James J. Han, Kishor S. Trivedi
ETT
2000
85views Education» more  ETT 2000»
8 years 7 months ago
Simple On-Line Scheduling Algorithms for All-Optical Broadcast-and-Select Networks
This paper considers all-optical broadcast networks providing a number of slotted WDM channels for packet communications. Each network user is equipped with one tunable transmitter...
Marco Ajmone Marsan, Andrea Bianco, Emilio Leonard...
ETT
2000
91views Education» more  ETT 2000»
8 years 7 months ago
Performance Analysis and Estimation of Call Admission Control Parameters in Wireless Integrated Voice and Data Networks
We propose an admission control policy for wireless multimedia networks that is based on the well known threshold-based guard channel method. The new scheme deals with two differen...
Mahmoud T. El-Hadidi, Khaled M. F. Elsayed, Mohame...
ETT
2000
70views Education» more  ETT 2000»
8 years 7 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
93views Education» more  ETT 2000»
8 years 7 months ago
Load-Adaptive MUI/ISI-Resilient Generalized Multi-Carrier CDMA with Linear and DF Receivers
A plethora of single-carrier and multi-carrier (MC) CDMA systems have been proposed recently to mitigate intersymbol interference (ISI) and eliminate multiuser interference (MUI). ...
Georgios B. Giannakis, Anastasios Stamoulis, Zheng...
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