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ICASSP
2008
IEEE
14 years 4 months ago
A factor graph approach to joint iterative data detection and channel estimation in pilot-assisted IDMA transmissions
We consider a pilot-assisted interleave-division multiple access (IDMA) system transmitting over block-fading channels. We describe this system in terms of a factor graph and use ...
Clemens Novak, Gerald Matz, Franz Hlawatsch
TWC
2008
119views more  TWC 2008»
13 years 9 months ago
Flow-level performance of opportunistic OFDM-TDMA and OFDMA networks
Abstract--In this paper, the flow-level performance of opportunistic scheduling in orthogonal frequency division multiplexing (OFDM) networks is studied. The analysis accounts for ...
Lei Lei, Chuang Lin, Jun Cai, Xuemin Shen
WICOMM
2008
116views more  WICOMM 2008»
13 years 9 months ago
Arrayed MC-CDMA reception in space-time diffused multipath vector channels
Multi-Carrier Code Division Multiple Access (MC-CDMA) is a modulation scheme that combines the advantages of OFDM and CDMA to provide robustness against frequency selectivity in w...
Farrukh Rashid, Athanassios Manikas
MCSS
2009
Springer
14 years 2 months ago
Multi-user OFDM Based on Braided Convolutional Codes
Abstract Braided convolutional codes (BCCs) form a class of iteratively decodable convolutional codes that are constructed from component convolutional codes. In braided code divis...
Michael Lentmaier, Marcos B. S. Tavares, Gerhard F...
COMCOM
2006
112views more  COMCOM 2006»
13 years 9 months ago
Performance modelling and evaluation of IEEE 802.11 distributed coordination function in multihop wireless networks
Initially designed for WLAN's, IEEE 802.11 medium access control (MAC) has also been widely used in the research of multihop wireless networks. The core MAC technique of IEEE ...
Jun He, Hung Keng Pung