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Báo cáo hóa học: " Editorial Smart Antennas for Next Generation Wireless Systems"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Editorial Smart Antennas for Next Generation Wireless Systems | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2007 Article ID 20427 2 pages doi 10.1155 2007 20427 Editorial Smart Antennas for Next Generation Wireless Systems Angeliki Alexiou 1 Monica Navarro 2 and Robert W. Heath Jr.3 1 Bell Laboratories Lucent Technologies Suffolk CO10 1LN UK 2 Centre Tecnol gic de Telecomunicacions de Catalunya CTTC 08860 Barcelona Spain 3 Department of Electrical and Computer Engineering The University of Texas at Austin TX78712 USA Received 31 December 2007 Accepted 31 December 2007 Copyright 2007 Angeliki Alexiou et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. The adoption of multiple antenna techniques in future wireless systems is expected to have a significant impact on the efficient use of the spectrum the minimisation of the cost of establishing new wireless networks the enhancement of the quality of service and the realisation of reconfigurable robust and transparent operation across multitechnology wireless networks. Although a considerable amount of research effort has been dedicated to the investigation of MIMO systems performance results conclusions and ideas on the critical implementation aspects of smart antennas in future wireless systems remain fragmental. The objective of this special issue is to address these critical aspects and present the most recent developments in the areas of antenna array design implementation measurements and MIMO channel modelling robust signal processing for multiple antenna systems and interference-aware system level optimisation. In the area of antenna array design the paper by T. Cooper et al. presents a tower-top smart antenna calibration scheme designed for high-reliability tower-top operation and based upon an array of coupled reference elements which sense the array s .