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Performance of capture-division packet access with slow shadowing and power control

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2 Author(s)
Zorzi, M. ; Center for Wireless Commun., California Univ., San Diego, La Jolla, CA, USA ; Borgonovo, F.

A new method for achieving improved spectrum reuse in cellular systems, called capture-division packet access (CDPA), has been introduced. The method uses a single frequency in all cells, but, unlike code-division multiple access (CDMA), it allows each transmitter to exploit the full bandwidth. Practically, the CDPA's way of operation can be seen as a slotted ALOHA scheme among different cells in which the mobile terminals belonging to the same cell transmit using a collision-free mechanism, which is easily obtained due to the very short intracell propagation delay. Parallel transmission in different cells is achieved through the “capture” capability. Packets that are not captured are almost immediately retransmitted, thus assuring that packets are eventually correctly received. We analyze the performance of the CDPA in the presence of slowly varying shadowing. The gain offered by power control techniques is also investigated. Finally, the effect of erroneous signaling information is studied, and a delay analysis is presented

Published in:

Vehicular Technology, IEEE Transactions on  (Volume:46 ,  Issue: 3 )

Date of Publication:

Aug 1997

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