Publication

On the concentration of the capacity for a code division multiple access system

Nicolas Macris, Satish Babu Korada
2007
Conference Papers

Abstract

We prove the concentration of the capacity, in the large system limit, for a code division multiple access system over an additive white Gaussian noise channel, with Gaussian signature sequences and {\it binary input} symbols. The probabilistic tools that are used are quite powerful and could have applications in many other similar situations.

Official source

https://infoscience.epfl.ch/entities/publication/6e0a186d-4df5-4472-9cff-8dea3709cbad

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Nicolas Macris, Satish Babu Korada
2007
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/6e0a186d-4df5-4472-9cff-8dea3709cbad

About this result

Related concepts (20)

Code-division multiple access

Code-division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access, where several transmitters can send information simultaneously over a single communication channel. This allows several users to share a band of frequencies (see bandwidth). To permit this without undue interference between the users, CDMA employs spread spectrum technology and a special coding scheme (where each transmitter is assigned a code).

Additive white Gaussian noise

Additive white Gaussian noise (AWGN) is a basic noise model used in information theory to mimic the effect of many random processes that occur in nature. The modifiers denote specific characteristics: Additive because it is added to any noise that might be intrinsic to the information system. White refers to the idea that it has uniform power spectral density across the frequency band for the information system. It is an analogy to the color white which may be realized by uniform emissions at all frequencies in the visible spectrum.

Channel access method

In telecommunications and computer networks, a channel access method or multiple access method allows more than two terminals connected to the same transmission medium to transmit over it and to share its capacity. Examples of shared physical media are wireless networks, bus networks, ring networks and point-to-point links operating in half-duplex mode. A channel access method is based on multiplexing, that allows several data streams or signals to share the same communication channel or transmission medium.

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