IMM Estimator-Based Interference Prediction for Power Control in Broadband Wireless Packet Networks

Young-Hun JUNG  Sun-Mog HONG  

IEICE TRANSACTIONS on Communications   Vol.E90-B    No.3    pp.676-680
Publication Date: 2007/03/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.3.676
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
interference prediction,  power control,  IMM estimator,  

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An interference prediction scheme is proposed for power control in packet-switched TDMA wireless networks. The prediction scheme is based on the interacting multiple model (IMM) estimator, and it is effective to a wide range of nonstationary dynamic characteristics of the interference power. Numerical experiments show that, compared with a scheme based on a Kalman filter, the IMM estimator-based scheme predicts the interference power more accurately and allows us to adjust the transmit power more efficiently in achieving a desired level of signal-to-interference-plus-noise ratio (SINR).