Asymptotic coding gains in multiuser systems
Publication
, Conference
Zhang, X; Brady, D
Published in: IEEE Vehicular Technology Conference
January 1, 1995
In this work the asymptotic multiuser coding gain (AMCG) as well as asymptotic multiuser efficiency (AME) are found for K coded asynchronous users and a variety of multiuser detectors, including optimum (MLS), multistage, decorrelated and conventional detectors. Since the direct sequence can be viewed as a special kind of block repetition codes, it gives zero (dB) coding gain in power-limited application. It is shown that some block encoding schemes with (n, k), k > 1 can provide direct-sequence spread-spectrum modulation and give positive coding gain. These systems combined with the narrow-band signature waveforms are shown to outperform their conventional approachs with the same bandwidth expansion constraint.
Duke Scholars
Published In
IEEE Vehicular Technology Conference
ISSN
0740-0551
Publication Date
January 1, 1995
Volume
2
Start / End Page
619 / 623
Citation
APA
Chicago
ICMJE
MLA
NLM
Zhang, X., & Brady, D. (1995). Asymptotic coding gains in multiuser systems. In IEEE Vehicular Technology Conference (Vol. 2, pp. 619–623).
Zhang, X., and D. Brady. “Asymptotic coding gains in multiuser systems.” In IEEE Vehicular Technology Conference, 2:619–23, 1995.
Zhang X, Brady D. Asymptotic coding gains in multiuser systems. In: IEEE Vehicular Technology Conference. 1995. p. 619–23.
Zhang, X., and D. Brady. “Asymptotic coding gains in multiuser systems.” IEEE Vehicular Technology Conference, vol. 2, 1995, pp. 619–23.
Zhang X, Brady D. Asymptotic coding gains in multiuser systems. IEEE Vehicular Technology Conference. 1995. p. 619–623.
Published In
IEEE Vehicular Technology Conference
ISSN
0740-0551
Publication Date
January 1, 1995
Volume
2
Start / End Page
619 / 623