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Effect of channel estimation error on bit rate performance of time domain equalizers.
| Content Provider | CiteSeerX |
|---|---|
| Author | Evans, Brian L. Wong, Ian Ding, Ming |
| Abstract | Abstract — Channel equalization plays a key role in achieving high bit rates in wireline multicarrier systems. Some VDSL systems and all standardized multicarrier ADSL systems employ time domain equalization (channel shortening) and frequency domain equalization in channel equalization. In this paper, we analyze the impact of imperfect channel estimates on the bit rate performance of four time domain equalization methods. We derive a closed-form expression for the bit rate loss due to channel estimation error. We simulate the sensitivity in bit rate performance using firstgeneration downstream ADSL transmission. In simulation, the minimum intersymbol interference and minimum mean square error methods are relatively insensitive to channel estimation errors vs. minimum delay spread and maximum shortening signal-to-noise ratio methods. I. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | High Bit Rate Time Domain Equalization Method Minimum Delay Spread Closed-form Expression Estimation Error Minimum Mean Square Error Method Vdsl System Bit Rate Performance Key Role Wireline Multicarrier System Signal-to-noise Ratio Method Channel Equalization Time Domain Equalizer Firstgeneration Downstream Adsl Transmission Frequency Domain Equalization Bit Rate Loss Minimum Intersymbol Interference Imperfect Channel Estimate Channel Estimation Error Abstract Channel Equalization |
| Content Type | Text |
