Computer networks
Adaptive Modulation over Nakagami Fading Channels
Wireless Personal Communications: An International Journal
Adaptive Modulation with Space-Time Block Coding for MIMO-OFDM Systems
ICITA '05 Proceedings of the Third International Conference on Information Technology and Applications (ICITA'05) Volume 2 - Volume 02
EURASIP Journal on Wireless Communications and Networking
Adaptive MIMO-OFDM based on partial channel state information
IEEE Transactions on Signal Processing
Cross-layer wireless multimedia transmission: challenges, principles, and new paradigms
IEEE Wireless Communications
Cross-Layer combining of adaptive Modulation and coding with truncated ARQ over wireless links
IEEE Transactions on Wireless Communications
New high-rate wireless LAN standards
IEEE Communications Magazine
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
Space-time block coding for wireless communications: performance results
IEEE Journal on Selected Areas in Communications
Adaptive multidimensional coded modulation over flat fading channels
IEEE Journal on Selected Areas in Communications
Throughput and PER estimates harnessing link-layer measurements for indoor 802.11n WLAN
Computer Standards & Interfaces
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This paper developed a cross-layer adaptive modulation and coding (AMC) design for space-time block coded (STBC) MIMO-OFDM systems, which combines the AMC at the physical layer with an automatic repeat request (ARQ) protocol at the data link layer, in order to maximize spectral efficiency under specified delay and packet error ratio (PER) constraints. The transmission mode for each subcarrier is updated frame-by-frame to match the time-varying channel conditions, in order to take full advantage of the OFDM systems. The proposed cross-layer AMC design is also incorporated with STBC to further improve the system performance. Numerical results have demonstrated that retransmission at the data link layer alleviate rigorous error-control requirements at the physical layer and thereby allows higher data rate transmission. It is shown that this cross-layer design has achieved considerable spectral efficiency gain in comparison with traditional AMC without cross-layer design. Note that increasing the maximum number of retransmissions beyond one has little effect on spectrum efficiency and will cause longer system delay. This suggests that a desirable trade-off between spectral efficiency and delay in the STBC MIMO-OFDM system is achieved by a small number of retransmission.