Comparison of time domain and frequency domain equalization for HSDPA channel

Bushra Tasadduq, Aisha Haroon, Hira Imtiaz, Adeel Razi

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

Abstract

In this paper we compare the time domain equalization (TDE) and frequency domain equalization (FDE) for high speed downlink packet access HSDPA channel profiles [1]. Linear minimum mean squared error (LMMSE) equalizers for FDE [2] and TDE [3-4] are implemented. We use the overlap and save technique for frequency domain filtering operation to alleviate the problem of circular convolution. The simulation results show that FDE based on a 256 point complex Fast Fourier Transform/Inverse Fast Fourier Transform (FFT/IFFT) is well suited for HSDPA receiver. For TDE, 40 taps equalizer is selected as in terms of gate count the complexity of a 40 taps TDE implementation and the proposed 256 point FFT FDE implementation is estimated to be comparable. Our results show that HSDPA receivers with FDE are more efficient with lesser complexity as compare to receivers with TDE.

Original languageEnglish
Title of host publication3CA 2010 - 2010 International Symposium on Computer, Communication, Control and Automation
Pages346-349
Number of pages4
Volume1
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2010 International Symposium on Computer, Communication, Control and Automation, 3CA 2010 - Tainan, Taiwan
Duration: 5 May 20107 May 2010

Conference

Conference2010 International Symposium on Computer, Communication, Control and Automation, 3CA 2010
CountryTaiwan
CityTainan
Period5/05/107/05/10

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