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A New Pilot-Signal based Space-Time Adaptive Algorithm

Grbic, Nedelko LU ; Nordholm, Sven; Nordberg, Jörgen and Claesson, Ingvar LU (2001) IEEE International Conference on Telecommunications (ICT 2001) In Proceedings of International Conference on Telecommunications : IEEE ICT 2001
Abstract
In the application of adaptive antenna arrays to wireless communications, a known pilot signal sequence may be used for estimating the array response at the beginning of each data frame. This pilot sequence is usually very short and conventional training methods which estimate the array response, based solely on this training sequence, may incur large estimation errors. In this paper, we propose an online modified weighted recursive least squares type of training algorithm for estimating the optimal array response by exploiting information from the whole frame of the received signal. The benefits of the proposed algorithm is that tracking of coherent noise and interference signals is substantially improved, and the overall performance is... (More)
In the application of adaptive antenna arrays to wireless communications, a known pilot signal sequence may be used for estimating the array response at the beginning of each data frame. This pilot sequence is usually very short and conventional training methods which estimate the array response, based solely on this training sequence, may incur large estimation errors. In this paper, we propose an online modified weighted recursive least squares type of training algorithm for estimating the optimal array response by exploiting information from the whole frame of the received signal. The benefits of the proposed algorithm is that tracking of coherent noise and interference signals is substantially improved, and the overall performance is increased. Simulation results show that the proposed methodoffers substantialimprovementwhencompared to the conventional least squares method.
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publication status
published
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in
Proceedings of International Conference on Telecommunications : IEEE ICT 2001
conference name
IEEE International Conference on Telecommunications (ICT 2001)
ISBN
973-99995-1-4
language
English
LU publication?
no
id
b2d81cbe-5adf-47db-b9e5-6c63a7bc7b81
date added to LUP
2016-06-23 14:59:19
date last changed
2016-06-29 13:26:40
@misc{b2d81cbe-5adf-47db-b9e5-6c63a7bc7b81,
  abstract     = {In the application of adaptive antenna arrays to wireless communications, a known pilot signal sequence may be used for estimating the array response at the beginning of each data frame. This pilot sequence is usually very short and conventional training methods which estimate the array response, based solely on this training sequence, may incur large estimation errors. In this paper, we propose an online modified weighted recursive least squares type of training algorithm for estimating the optimal array response by exploiting information from the whole frame of the received signal. The benefits of the proposed algorithm is that tracking of coherent noise and interference signals is substantially improved, and the overall performance is increased. Simulation results show that the proposed methodoffers substantialimprovementwhencompared to the conventional least squares method.<br/>},
  author       = {Grbic, Nedelko and Nordholm, Sven and Nordberg, Jörgen and Claesson, Ingvar},
  isbn         = {973-99995-1-4},
  language     = {eng},
  series       = {Proceedings of International Conference on Telecommunications : IEEE ICT 2001},
  title        = {A New Pilot-Signal based Space-Time Adaptive Algorithm},
  year         = {2001},
}