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- Logothetis, Catharina Carlemalm, et al.
(författare)
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Joint Channel and velocity estimation
- 2007
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Ingår i: 2007 IEEE international conference on networking, sensing and control, vols 1 and 2. ; , s. 781-786
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Konferensbidrag (refereegranskat)abstract
- An allgorithm for jointly tracking the Rayleigh fading channel and the mobile velocity is presented. The proposed scheme is based on the Interacting Multiple Model (IMM) Algorithm. The IMM utilizes a bank of Kalman filter, each matched to a specific mobile velocity, and the output of the filters are linearly combined based on the instantaneous likelihood of the velocity-models. The proposed scheme allows the tracking of abrupt changes in the mobile velocity even in very low SNR environments.
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| 2. |
- Lu, Guangyue, et al.
(författare)
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Enhanced interleaved partitioning PTS for peak-to-average power ratio reduction in OFDM systems
- 2006
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Ingår i: Electronics Letters. - : Institution of Engineering and Technology (IET). - 0013-5194 .- 1350-911X. ; 42:17, s. 983-984
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Tidskriftsartikel (refereegranskat)abstract
- The independence of the candidates generated in the existing interleaved partitioning partial transmit sequences (IP-PTS) is first investigated. The result shows that these candidates are not fully independent, which leads to performance inferior to the adjacent partitioning PTS (AP-PTS) in which all the generated candidates are mutually independent. To improve the performance of the IP-PTS in peak-to-average power ratio reduction, a novel type of phase sequences for IP-PTS is proposed that can be used to produce fully independent candidates so that IP-PTS can achieve similar performance to AP-PTS, while keeping low complexity.
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