Paper Info
Title
Channel Division Multiple Access Based on High UWB Channel Temporal Resolution
Abstract
Ultra-wideband (UWB) has been recently presented as a promising radio technology due to the large bandwidth available. This feature enables point to point high data rates at short range as well as high temporal resolution with long channel impulse responses (CIR). Due to the their large bandwidth, UWB systems enables high temporal resolution with long CIR. In this paper, we evaluate an original multiple access scheme called channel division multiple access (ChDMA), where we use the CIR as a user signature. The signature code is given by the channel and the users are separated by their position: this signature is uniquely determined by the user's position, which changes from one position to another. This signature location- dependent property provides decentralized flexible multiple access as the codes are naturally generated by the radio channel. The framework is analyzed and validated by capacity assessments using UWB measurements performed at Eurecom and compared with classical CDMA schemes with random spreading codes. The analysis is focused on the impact of the user's asynchronism and the period of symbol on system performance. Two structures are considered at the receiver: single-user matched filter and MMSE receiver with Gaussian and BPSK signaling schemes.
Year
DOI
Venue
2006
10.1109/VTCF.2006.216
Montreal, Que.
Keywords
DocType
ISSN
gaussian processes,least mean squares methods,matched filters,multi-access systems,transient response,ultra wideband communication,wireless channels,bpsk signaling scheme,cdma scheme,gaussian signaling scheme,mmse receiver,uwb channel temporal resolution,channel division multiple access,channel impulse response,radio channel,random spreading code,signature code,signature location-dependent property,single-user matched filter
Conference
1090-3038
ISBN
Citations 
PageRank 
1-4244-0063-5
6
0.52
References 
Authors
5
3
Name
Order
Citations
PageRank
Raul L. De Lacerda Neto160.52
Aawatif Menouni Hayar2252.69
Mérouane Debbah38575477.64