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Diversity Techniques to Combat Fading in WiMAX
White Paper Various modulation techniques involved are explored and each of the performances enhancing techniques is evaluated with regard to its functionality in the system. The simulation results show that the Space-Frequency... [22 Apr 2009]
CDMA Channel Parameters Maximizing TCP Throughput
White Paper Specifically, in the case where direct sequence spread spectrum modulation is used over a fixed bandwidth channel, it was found that the optimal processing gain m that maximizes TCP throughput. Block... [31 Oct 2007]
Allocating Resources to Multiple Antenna Mobile Nodes in Fading Wireless Ad-Hoc Networks With Temporally Correlated Loss
White Paper Relying on adaptive modulation techniques for multiple antenna systems, this paper examines optimal schemes of maximizing throughput under power and loss constraints as well as minimizing transmission power under... [01 Aug 2007]
Multilevel Codes for OFDM-Like Modulation Over Underspread Fading Channels
White Paper This paper studies the problem of modulation and coding for doubly dispersive, i.e.time and frequency selective fading channels. Using the recent result that under-spread linear systems are approximately diagonalized by... [18 Apr 2007]
Bit Interleaved Coded Modulation With Space Time Block Codes for OFDM Systems
White Paper On the other hand, Bit Interleaved Coded Modulation (BICM) was shown to have high performance for flat fading Rayleigh channels. Wireless systems often implement one or more types of diversity in order to achieve... [11 Apr 2007]
Multi-Coded OFDM Transmission Using Pace-Time Block Codes
White Paper The previously proposed algorithm of Code and Modulation (CM) selection and power loading, on a basis of temporary channel information, is evaluated here in its simplified form (reduced number of CM schemes). [11 Apr 2007]
