Joint Estimation of IQ Parameters and Channel Response for OFDM Systems

被引：0

作者：

Marey, M. ^{[1
]}

Samir, M. ^{[2
]}

Dobre, O. ^{[1
]}

El-Shenawy, H. ^{[2
]}

El-Henawy, A. ^{[3
]}

机构：

[1] Mem Univ Newfoundland, Fac Engn & Appl Sci, St John, NF A1B 3X5, Canada

[2] El Shorouk Acad, Fac Engn, Cairo, Egypt

[3] Ain Shams Univ, Fac Engn, Cairo, Egypt

来源：

2010 IEEE 72ND VEHICULAR TECHNOLOGY CONFERENCE FALL | 2010年

关键词：

CARRIER FREQUENCY OFFSET; COMPENSATION; IMBALANCE; TRANSMITTER; ALGORITHM;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we develop a new algorithm to jointly estimate the channel impulse response and in-phase-quadrature (IQ) imbalances for OFDM systems. The estimation algorithm is based on the expectation maximization (EM) algorithm, exploiting information from the pilot symbols and detected data symbols in a systematic fashion. To reduce the complexity of the estimation algorithm, a suboptimal scheme is also introduced. The results indicate that the proposed algorithms achieve a significant improvement in the bit error rate (BER) performance when compared with conventional data-aided algorithms.

引用

页数：5

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