[PDF][PDF] Area efficient & cost effective pulse sha** filter for software radios
R Mehra, S Devi - International Journal of Ad hoc, Sensor & …, 2010 - researchgate.net
In this paper area efficient and cost effective techniques for design of pulse sha** filter
have been presented to improve the computational and implementation complexity. Pulse …
have been presented to improve the computational and implementation complexity. Pulse …
Performance evaluation of chaotic CDMA using an implemented system on software defined radio
H Watanabe, Y Narumiya… - Nonlinear Theory and Its …, 2013 - jstage.jst.go.jp
We evaluate the performance of the chaotic code division multiple access (CDMA) on
realistic communication environment. The previous researches on asynchronous chaotic …
realistic communication environment. The previous researches on asynchronous chaotic …
Quasi-orthogonal multi-carrier CDMA
Y Jitsumatsu, T Kohda - IEEE GLOBECOM 2008-2008 IEEE …, 2008 - ieeexplore.ieee.org
It is believed that the dimension of the signal space with interval T and bandwidth W is 2WT,
while we cannot make the out-of-band and out-of-time energies of any waveform zero. We …
while we cannot make the out-of-band and out-of-time energies of any waveform zero. We …
Negative beta encoder
T Kohda, S Hironaka, K Aihara - ar** filters
Y Jitsumatsu, M Ogata, T Kohda - … International Conference on …, 2008 - ieeexplore.ieee.org
The performances of Slepian's PSWF and Gaussian chip waveforms are compared in
asynchronous CDMA systems, where Markov spreading codes are employed. Bit error rate …
asynchronous CDMA systems, where Markov spreading codes are employed. Bit error rate …
Markov codes make Gaussian pulse superior to a raised cosine pulse
Y Jitsumatsu, T Kohda - 2008 IEEE 10th International …, 2008 - ieeexplore.ieee.org
A Gaussian pulse has intersymbol-interference, which degrades signal to interference ratio
(SIR). In asynchronous CDMA system, however, Markov codes with negative correlation …
(SIR). In asynchronous CDMA system, however, Markov codes with negative correlation …
A new mix-carrier method based on fractional fourier transform in asynchronous CDMA system
R Wen, X Sha, X Qiu - 2010 First International Conference on …, 2010 - ieeexplore.ieee.org
In asynchronous communication system, such as MANET or uplink of CDMA system, MAI
(Multiple Access Interference) is a problem that cannot be ignored. To suppress the effect of …
(Multiple Access Interference) is a problem that cannot be ignored. To suppress the effect of …
[PDF][PDF] Gabor-division CDMA system permits frequency and timing offsets
T Kohda, Y Jitsumatsu, K Aihara - IEEE Globecom 2011, 2011 - researchgate.net
An asynchronous DS-CDMA system with time do-main spread spectrum (SS) codes permits
relative time delays between users. We have recently proposed two CDMA systems. One is …
relative time delays between users. We have recently proposed two CDMA systems. One is …
Application of asynchronous channels method to the W-CDMA systems
E Nameda, H Terai, M Kao… - The Open Cybernetics & …, 2009 - benthamopen.com
We evaluate new interference suppression method that utilizes the effect of asynchronous
accesses in wireless telecommunication. The method is called as asynchronous channels …
accesses in wireless telecommunication. The method is called as asynchronous channels …
Performance of Chaotic CDMA System implemented on Software-Defined Radio System
H Watanabe, Y Omori, M Hasegawa, K Aihara - IEICE Proceedings Series - ieice.org
We implement the chaotic code division multiple access (CDMA) system using the software-
defined radio (SDR) technology and evaluate the performance of the implemented system …
defined radio (SDR) technology and evaluate the performance of the implemented system …