Adaptive Transmission for MIMO systems with Integrated Voice/Data Traffics

LANGUAGE
English
SOURCE
Proc. The 19th International Teletraffic Congress (ITC19), Beijing China
Published Date:2005-08-29
ABSTRACT
Multimedia traffic has different quality of service (QoS) requirements. For example, voice traffic has tight delay constraint at low data rate, while data traffic requires a higher data rate with less severe delay constrains. This paper proposes an adaptive transmission scheme for MIMO systems with multimedia traffic, which provides different bit error rate and transmission rate. The adaptive transmission scheme allocates substreams, rate and power jointly according to the feedback information to satisfy the different QoS requirements of the multimedia traffic. Furthermore, a sub optimal search algorithm with
low complexity is proposed for practical implementation. Simulation results show that the proposed scheme improves the spectral efficiency while guarantees the QoS requirements of multimedia traffic. Moreover, the proposed sub optimal search achieves close optimal performance with great complexity reduction.
KEYWORDS
Adaptive transmission, MIMO systems, Voice/Data Traffics