Publication

Comparison of multi-cell multi-antenna CDMA and TDMA systems

Ninoslav Marina
2004
Reports

Abstract

We evaluate system capacities for multicellular systems with different multiple access strategies. The interference from another cell sharing the same frequency is calculated, and the total interference arising from the frequency reuse pattern is evaluated. A simple analytical model for the inter-cell interference is developed, which is in good agreement with numerical experiments. Irrespective of the multiple access strategy, capacity becomes interference limited. When comparing TDMA and CDMA in the uplink, there is a crossover in capacity. At low SNR CDMA is preferable, at high SNR TDMA performs better.

Official source

https://infoscience.epfl.ch/entities/publication/23440e88-1b2c-44c2-855b-f59434ecf6ce

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Ninoslav Marina
2004
Reports

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/23440e88-1b2c-44c2-855b-f59434ecf6ce

About this result

Related concepts (32)

Cellular network

A cellular network or mobile network is a telecommunications network where the link to and from end nodes is wireless and the network is distributed over land areas called cells, each served by at least one fixed-location transceiver (typically three cell sites or base transceiver stations). These base stations provide the cell with the network coverage which can be used for transmission of voice, data, and other types of content.

Time-division multiple access

Time-division multiple access (TDMA) is a channel access method for shared-medium networks. It allows several users to share the same frequency channel by dividing the signal into different time slots. The users transmit in rapid succession, one after the other, each using its own time slot. This allows multiple stations to share the same transmission medium (e.g. radio frequency channel) while using only a part of its channel capacity.

UMTS

The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard. Developed and maintained by the 3GPP (3rd Generation Partnership Project), UMTS is a component of the International Telecommunication Union IMT-2000 standard set and compares with the CDMA2000 standard set for networks based on the competing cdmaOne technology. UMTS uses wideband code-division multiple access (W-CDMA) radio access technology to offer greater spectral efficiency and bandwidth to mobile network operators.

Related publications (7)

Comparison of multi-cell multi-antenna CDMA and TDMA systems

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