کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
865798 909682 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Carrier Frequency Offset Compensation for an Interleaved OFDMA Uplink
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Carrier Frequency Offset Compensation for an Interleaved OFDMA Uplink
چکیده انگلیسی
This paper reports an investigation of the carrier frequency offset (CFO) compensation in the uplink of the orthogonal frequency division multiple access (OFDMA) system with interleaved subcarrier assignment. The presence of CFOs between the transmitters and the uplink receiver will destroy the orthogonality among the different subcarriers, resulting in inter-carrier interference and multiuser interference. This paper proposes a pseudoinverse CFO compensation method based on the signal structure. The proposed method can compensate the CFOs of all users simultaneously and isolate the signals from all users at the same time. Compared with the existing CFO compensation methods, the new method provides a considerable signal-to-noise ratio gain on the bit error rate performance and has a relatively low implementation complexity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tsinghua Science & Technology - Volume 13, Issue 1, February 2008, Pages 1-8
نویسندگان
, ,