Name
Abstract | ||
|---|---|---|
In this paper, we propose an energy-efficient scheme to reduce the power consumption of ADCs in MIMO-OFDM systems. The proposed opportunistic error correction scheme is based on resolution adaptive ADCs and fountain codes. The key idea is to transmit a fountain-encoded packet over one single sub-carrier per antenna and to transmit more packets than needed for decoding. Comparing to the IEEE 802.11n standard, this approach allows around 83% of power saving in ADCs for a 2 Ã 2 system and 90% for a 4 Ã 4 system. With the current FEC scheme defined in the IEEE 802.11n standard, a 4 Ã 4 system requires twice amount of power in ADCs as a 2 Ã 2 system when receiving the same amount of information with the same power. However, using opportunistic error correction in a 4 Ã 4 system costs only around 1.4 times amount of energy in ADCs comparing to a 2 Ã 2 system. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1109/PIMRC.2009.5449870 | PIMRC |
Keywords | Field | DocType |
analogue-digital conversion,ofdm modulation,error correction codes,fountain codes,ieee 802.11n standard,mimo communication,analog-to-digital converter,ieee standards,mimo-ofdm systems,opportunistic error correction,mimo,energy efficient,quantization,error correction | Computer science,Fountain code,Network packet,MIMO,Error detection and correction,Real-time computing,Analog-to-digital converter,Decoding methods,Quantization (signal processing),Orthogonal frequency-division multiplexing | Conference |
ISBN | Citations | PageRank |
978-1-4244-5123-4 | 1 | 0.38 |
References | Authors | |
2 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xiaoying Shao | 1 | 16 | 4.68 |
| Cornelis H. Slump | 2 | 189 | 50.31 |