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Signal acquisition for cooperative transmissions in multi-hop ad-hoc networks

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2 Author(s)
Sirkeci-Mergen, B. ; Sch. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA ; Scaglione, A.

Cooperative transmission schemes in multi-hop networks have the advantage of energy efficiency and increased network coverage. Realizing these advantages, however, requires a compatible physical layer. We consider the detection of a signal transmitted by multiple cooperative nodes. Exploiting the structure of the network, we formulate the problem, and propose a generalized likelihood ratio detector. We compare the performance of the proposed detector with two others: estimator-correlator and a genie-aided detector (provides a performance benchmark). The genie-aided detector assumes the knowledge of certain network parameters which may be unknown during reception. Simulations show that the proposed detector performs reasonably close to the genie-aided one, while being considerably better than the estimator-correlator.

Published in:

Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on  (Volume:2 )

Date of Conference:

17-21 May 2004