Abstract
A reconfigurable space-time coding technique is investigated, for a high-speed downlink packet access multiple-antenna network, which combats the effects of antenna correlation. Reconfigurability is achieved at the link level by introducing a linear precoder in a space-time block coded system. The technique assumes knowledge of the long-term characteristics of the channel, namely the channel correlation matrix at the transmitter. The benefits of the proposed reconfigurable technique as compared to the conventional non-reconfigurable versions are evaluated via system-level simulations. In order to characterize the system-level performance accurately and, at the same time, use a feasible approach in terms of computational complexity, a suitable link-to-system interface has been developed. The average system throughput and the number of satisfied users are the performance metrics of interest. Simulation results demonstrate the performance enhancements achieved by the application of reconfigurable techniques as compared to their conventional counterparts.
Highlights
Future-generation wireless systems design is expected to address a number of challenges, such as high data rates, improved link quality, and reconfigurability, that is, adaptivity to varying propagation and network conditions
The requirements, in terms of computational and hardware complexity, and performance enhancements resulting from incorporating multiple-input multiple-output (MIMO) techniques in a wireless network need to be evaluated in a realistic manner, in order to assess their efficiency
The single-antenna-test case is investigated as a reference point, in order to demonstrate the benefits of employing space-time techniques
Summary
Future-generation wireless systems design is expected to address a number of challenges, such as high data rates, improved link quality, and reconfigurability, that is, adaptivity to varying propagation and network conditions. In order to address reconfigurability, promising technologies, such as space-time processing, can be considered as a baseline and new features that provide adaptivity to varying propagation or network conditions need to be designed. An example of such a reconfigurable transceiver architecture will be presented . The system-level simulator input should be specified according to a predefined number of test cases, each consisting of specific space-time algorithms, antenna configurations, propagation environment, mobility, and user requirements
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
