2006
DOI: 10.1109/jsac.2006.874425
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Adaptive spread-spectrum multicarrier multiple-access over wirelines

Abstract: In this paper, we investigate the dynamic resource allocation adapted to spread spectrum multicarrier multiple access (SS-MC-MA) systems in a multiuser power line communication (PLC) context. The developed adaptive system is valid for uplink, downlink, as well as for indoor and outdoor communications. The studied SS-MC-MA system is based on classical multicarrier modulation like DMT, combined with a spread-spectrum (SS) component used to multiplex several information symbols of a given user over the same subca… Show more

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Cited by 38 publications
(43 citation statements)
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“…This proposition, with the proof given in [11], says that maximum MC-DS-CDMA throughput is obtained on each subcarrier if R i /L c +1 bits are assigned to L c (2 Ri/Lc− Ri/Lc − 1) codes, and R i /L c bits are assigned to the other codes,…”
Section: Mc-ds-cdma Bit Loadingmentioning
confidence: 92%
“…This proposition, with the proof given in [11], says that maximum MC-DS-CDMA throughput is obtained on each subcarrier if R i /L c +1 bits are assigned to L c (2 Ri/Lc− Ri/Lc − 1) codes, and R i /L c bits are assigned to the other codes,…”
Section: Mc-ds-cdma Bit Loadingmentioning
confidence: 92%
“…An optimal solution for this problem is given in [18]. It proves that an optimal throughput distribution would be to…”
Section: A Infinite Granularitymentioning
confidence: 99%
“…Now, we consider a system composed of a single SS-MC-MA block for a single user. The system throughput per symbol for a single SS-MC-MA block using a zero-forcing detection is given from [18] by where C is the number of codes, S the group of subcarriers, L the spreading code length, H k the frequency-domain response of the k th subcarrier, E c the power density of the c th code, and Г the signal-to-noise ratio (SNR) gap, known as the normalized SNR [19]. The throughput maximization study is divided into two parts.…”
Section: Proposed Algorithmmentioning
confidence: 99%
“…The total throughput in bits per symbol of a SS-MC-MA system using a zero-forcing detection is given from [11] by…”
Section: Proposed Allocation Algorithmmentioning
confidence: 99%
“…An optimal solution for this problem is given in [11] and it shows that an optimal throughput distribution would be to allocate…”
Section: Proposed Allocation Algorithmmentioning
confidence: 99%