Characteristics of MIMO-OFDM channels in indoor environments
EURASIP Journal on Wireless Communications and Networking
EURASIP Journal on Applied Signal Processing
Multiuser channel estimation and prediction in two dimensions for MIMO-OFDM uplinks
Computer Communications
Challenge of channel estimations and its way out in MIMO OFDM systems for mobile wireless channels
WSEAS TRANSACTIONS on COMMUNICATIONS
Limitations of current 4G systems and its substitute schemes with TDD/TDMA
WSEAS TRANSACTIONS on COMMUNICATIONS
On Performance of Clustering-Based Limited Feedback Beamforming in Multiple-Antenna OFDM Systems
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
A practical scheme for frequency offset estimation in MIMO-OFDM systems
EURASIP Journal on Wireless Communications and Networking - Special issue on synchronization in wireless communications
Carrier frequency offset estimation for multi-user MIMO OFDM uplink using CAZAC sequences
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Two-step signal detection for MIMO-OFDM systems without cyclic prefix
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Implementation and performance of low complexity SIMO OFDM timing synchronization
WTS'09 Proceedings of the 2009 conference on Wireless Telecommunications Symposium
The IEEE802.11n capability analysis model based on mobile networking architecture
SMC'09 Proceedings of the 2009 IEEE international conference on Systems, Man and Cybernetics
An improved joint synchronization and channel estimation algorithm for MIMO-OFDM system
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Performance study for STC-OFDM systems based on IEEE802.11a standard
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
EUC'07 Proceedings of the 2007 international conference on Embedded and ubiquitous computing
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Design of low-complexity FFT processor for MIMO-OFDM based SDR systems
ICACT'10 Proceedings of the 12th international conference on Advanced communication technology
SAGE based joint timing-frequency offsets and channel estimation in distributed MIMO systems
Computer Communications
Efficient Detection Algorithms for MIMO Communication Systems
Journal of Signal Processing Systems
Wireless Personal Communications: An International Journal
Comb-Pattern optimal pilot in MIMO-OFDM system
ICCNMC'05 Proceedings of the Third international conference on Networking and Mobile Computing
Low complexity timing synchronisation for high speed wireless local area networks
International Journal of Communication Networks and Distributed Systems
An IEEE 802.11a/g/p OFDM receiver for GNU radio
Proceedings of the second workshop on Software radio implementation forum
Decoding IEEE 802.11a/g/p OFDM in software using GNU radio
Proceedings of the 19th annual international conference on Mobile computing & networking
RLS-Based Estimation and Tracking of Frequency Offset and Channel Coefficients in MIMO-OFDM Systems
Wireless Personal Communications: An International Journal
| Hi-index | 35.68 |
The combination of multiple-input multiple-output (MIMO) signal processing with orthogonal frequency division multiplexing (OFDM) is regarded as a promising solution for enhancing the data rates of next-generation wireless communication systems operating in frequency-selective fading environments. To realize this extension of OFDM with MIMO, a number of changes are required in the baseband signal processing. An overview is given of the necessary changes, including time and frequency synchronization, channel estimation, synchronization tracking, and MIMO detection. As a test case, the OFDM-based wireless local area network (WLAN) standard IEEE 802.11a is considered, but the results are applicable more generally. The complete MIMO OFDM processing is implemented in a system with three transmit and three receive antennas, and its performance is evaluated with both simulations and experimental test results. Results from measurements with this MIMO OFDM system in a typical office environment show, on average, a doubling of the system throughput, compared with a single antenna OFDM system. An average expected tripling of the throughput was most likely not achieved due to coupling between the transmitter and receiver branches.