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Spectral Efficiency in the Wideband Regime
, 2002
"... The tradeoff of spectral efficiency (b/s/Hz) versus energy perinformation bit is the key measure of channel capacity in the wideband powerlimited regime. This paper finds the fundamental bandwidthpower tradeoff of a general class of channels in the wideband regime characterized by low, but nonz ..."
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Cited by 393 (29 self)
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The tradeoff of spectral efficiency (b/s/Hz) versus energy perinformation bit is the key measure of channel capacity in the wideband powerlimited regime. This paper finds the fundamental bandwidthpower tradeoff of a general class of channels in the wideband regime characterized by low
Spectral Efficiency of CDMA with Random Spreading
 IEEE TRANS. INFORM. THEORY
, 1999
"... The CDMA channel with randomly and independently chosen spreading sequences accurately models the situation where pseudonoise sequences span many symbol periods. Furthermore, its analysis provides a comparison baseline for CDMA channels with deterministic signature waveforms spanning one symbol per ..."
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Cited by 312 (23 self)
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period. We analyze the spectral efficiency (total capacity per chip) as a function of the number of users, spreading gain, and signaltonoise ratio, and we quantify the loss in efficiency relative to an optimally chosen set of signature sequences and relative to multiaccess with no spreading. White
Spectral Efficiency
"... Spectral efficiency is a measure of the performance of channel coding methods. It refers to the ability of a given channel encoding method to utilize bandwidth efficiently. It is defined as the average number of bits per unit of time (bit rate) that can be transmitted per unit of bandwidth (bits per ..."
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Spectral efficiency is a measure of the performance of channel coding methods. It refers to the ability of a given channel encoding method to utilize bandwidth efficiently. It is defined as the average number of bits per unit of time (bit rate) that can be transmitted per unit of bandwidth (bits
On the Spectral Efficiency of Large CDMA
, 2003
"... The spectral efficiency of large CDMA systems using higher order modulation schemes is investigated. Therefore, the asymptotic analysis for single cell systems and random spreading codes is used to obtain the signaltointerferenceandnoise ratio (SINR) after the Matched Filter (MF) and Linear Minim ..."
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The spectral efficiency of large CDMA systems using higher order modulation schemes is investigated. Therefore, the asymptotic analysis for single cell systems and random spreading codes is used to obtain the signaltointerferenceandnoise ratio (SINR) after the Matched Filter (MF) and Linear
Spectral efficiency of multicarrier CDMA
 IEEE Trans. Inf. Theory
, 2005
"... Abstract—We analyze the spectral efficiency (sumrate per subcarrier) of randomly spread synchronous multicarrier codedivision multiple access (MCCDMA) subject to frequencyselective fading in the asymptotic regime of number of users and bandwidth going to infinity with a constant ratio. Both upli ..."
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Cited by 16 (1 self)
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Abstract—We analyze the spectral efficiency (sumrate per subcarrier) of randomly spread synchronous multicarrier codedivision multiple access (MCCDMA) subject to frequencyselective fading in the asymptotic regime of number of users and bandwidth going to infinity with a constant ratio. Both
Spectral Efficiency WDM Systems
, 2004
"... The current emphasis on lightwave systems is on increasing the spectral efficiency of WDM systems. One of the techniques that is used for achieving high spectral efficiency in WDM systems is vestigial side band demultiplexing. This thesis reports the modeling and analysis of an experimental 40 Gbit/ ..."
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The current emphasis on lightwave systems is on increasing the spectral efficiency of WDM systems. One of the techniques that is used for achieving high spectral efficiency in WDM systems is vestigial side band demultiplexing. This thesis reports the modeling and analysis of an experimental 40 Gbit
SpectrallyEfficient Continuous Phase Modulations
 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
, 2009
"... Abstract—We investigate the spectral efficiency of continuous phase modulations (CPMs). To this end, we need an effective bandwidth definition for a CPM signal, whose power spectral density has in principle an infinite support. The definition we adopt is based on the spacing between adjacent carrier ..."
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Cited by 12 (7 self)
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Abstract—We investigate the spectral efficiency of continuous phase modulations (CPMs). To this end, we need an effective bandwidth definition for a CPM signal, whose power spectral density has in principle an infinite support. The definition we adopt is based on the spacing between adjacent
The Spectral Efficiency of Linear Precoders
, 2003
"... Recent results on the asymptotic empirical eigenvalue distribution of sum or product of matrices, based on the Free Probability Theory, have enabled the study of the asymptotic limits of Linear Precoded OFDM systems with MMSE equalization for ergodic and nonergodic channels. In this contribution, we ..."
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Cited by 2 (1 self)
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Recent results on the asymptotic empirical eigenvalue distribution of sum or product of matrices, based on the Free Probability Theory, have enabled the study of the asymptotic limits of Linear Precoded OFDM systems with MMSE equalization for ergodic and nonergodic channels. In this contribution, we extend these results to the MMSE Successive Interference Cancellation detector with realistic channels and give an explicit answer on the impact of the choice of certain type of spreading codes.
Spectral efficiency of spectrumpooling systems
 IET Commun
, 2008
"... In this contribution, we investigate the idea of using cognitive radio to reuse locally unused spectrum to increase the total system capacity. We consider a multiband/wideband system in which the primary and cognitive users wish to communicate to different receivers, subject to mutual interference a ..."
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Cited by 17 (6 self)
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. It turns out that, although its simplicity, the proposed scheme showed very interesting features with respect to the spectral efficiency and the maximum number of possible pairwise cognitive communications. We impose the constraint that users successively transmit over available bands through selfish water
Results 1  10
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