I/Q imbalance compensation and channel equalization algorithm for MISO-OFDM systems

Yi Hung Lin, Chih Feng Wu, Muh Tian Shiue, Chorng Kuang Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this paper, both the I/Q imbalance compensation and the channel equalization algorithm are proposed for space-time-block-code (STBC) MISO-OFDM systems. The I/Q imbalance compensation scheme is composed of self-calibration and tracking processes. The self-calibration process is further divided into two stages, symmetric- and anti-symmetric-tone, employed to extract the gain and the phase mismatches of transmitter (Tx) and receiver (Rx) I/Q imbalance for end-user in system power-on. According to the results of self-calibration process, both pre-and post-compensation block is presented to eliminate the Tx and Rx I/Q imbalances of end-user, respectively. In addition, the remote Tx I/Q imbalance compensation can be merged into the channel equalization process, based on MMSE criterion, on each subchannel.

Original languageEnglish
Title of host publication2012 12th International Conference on ITS Telecommunications, ITST 2012
Pages852-856
Number of pages5
DOIs
StatePublished - 2012
Event2012 12th International Conference on ITS Telecommunications, ITST 2012 - Taipei, Taiwan
Duration: 5 Nov 20128 Nov 2012

Publication series

Name2012 12th International Conference on ITS Telecommunications, ITST 2012

Conference

Conference2012 12th International Conference on ITS Telecommunications, ITST 2012
Country/TerritoryTaiwan
CityTaipei
Period5/11/128/11/12

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