Abstract:
Next generation wireless local area networks (WLANs) such as the IEEE 802.11a standard are expected to rely on multiple antennas at both transmitter and receiver to incre...Show MoreMetadata
Abstract:
Next generation wireless local area networks (WLANs) such as the IEEE 802.11a standard are expected to rely on multiple antennas at both transmitter and receiver to increase throughput and link reliability. However, these improvements come at a significant increase in signal processing and hence hardware complexity compared to existing single-antenna systems. This paper presents, to the best of the authors' knowledge, the first 4 /spl times/ 4 MIMO-OFDM WLAN physical layer ASIC based on the OFDM specifications of the IEEE 802.1 la standard. The ASIC achieves an uncoded throughput of 192 Mbps in a 20 MHz channel resulting in a spectral efficiency of 9.6 bits/s/Hz. We describe the hardware architectural differences to single-antenna OFDM systems as well as the extensions made necessary by the use of multiple antennas. Our implementation provides reference for the silicon complexity of MIMO-OFDM systems.
Date of Conference: 12-16 September 2005
Date Added to IEEE Xplore: 05 December 2005
Print ISBN:0-7803-9205-1
Print ISSN: 1930-8833
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Orthogonal Frequency Division Multiplexing ,
- Multiple Antennas ,
- Hardware Complexity ,
- Wireless Local Area Network ,
- Gain Control ,
- Detection Process ,
- Data Streams ,
- Multiple-input Multiple-output ,
- Automatic Gain Control ,
- Channel Estimation ,
- Forward Error Correction ,
- Channel Matrix ,
- Chip Area ,
- Single-input Single-output ,
- Digital Domain ,
- Spatial Multiplexing ,
- Time Division Duplex ,
- Single-input Single-output Systems ,
- High-level Architecture ,
- Multiple-input Multiple-output Channel ,
- Part Of The Frame
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Orthogonal Frequency Division Multiplexing ,
- Multiple Antennas ,
- Hardware Complexity ,
- Wireless Local Area Network ,
- Gain Control ,
- Detection Process ,
- Data Streams ,
- Multiple-input Multiple-output ,
- Automatic Gain Control ,
- Channel Estimation ,
- Forward Error Correction ,
- Channel Matrix ,
- Chip Area ,
- Single-input Single-output ,
- Digital Domain ,
- Spatial Multiplexing ,
- Time Division Duplex ,
- Single-input Single-output Systems ,
- High-level Architecture ,
- Multiple-input Multiple-output Channel ,
- Part Of The Frame