Future broadband wireless communication systems are expected to be able to offer new and powerful services enabling fast transmission rates of several tens of Mbit/s. This is an ambitious challenge especially for mobile communication systems since these systems should be able to cope with severely time dispersive channels, associated to the signal multipath propagation. Moreover, these systems should have high spectral and power efficiencies, as well as high capacity and flexibility. Spread spectrum techniques, particularly coded division multiple access (CDMA) techniques allow high capacity and flexibility, continuous transmission requiring low-peak power requirements for the amplifiers, as well as some robustness against fading and time-dispersion effects associated with the multipath propagation. When employed in prefix assisted (PA) block transmission schemes combined with frequency-domain receiver implementations they become especially interesting for broadband wireless systems. In Frequency-Domain Multiuser Detection for CDMA Systems the use of PA block transmission is considered in the context of both DS (Direct Sequence) and MC (Multicarrier) CDMA schemes. The main goal is the study of frequency-domain multiuser detection techniques with iterative signal detection/decoding techniques, also in combination with estimation and cancelation of nonlinear distortion effects. The receiver structures are suitable to scenarios with high interference levels and strongly time-dispersive channels.

Adarsh Garg, PhD, is currently Professor (IT and Analytics), GL Bajaj Institute of Management and Research, Greater Noida, India. She was formerly Professor at Galgotias University, Gautam Buddh Nagar, Greater Noida, India, and Visiting Professor at Delhi Technical University, Delhi, India. Prior to joining Galgotias University, she worked with organizations including WIPRO Tech, GE, IMT Ghaziabad, Punjabi University, and Patiala. She is currently supervising several PhD candidates. Dr. Garg has published over 50 research papers in refereed international/national journals and conference proceedings. She is a member of various professional bodies, including the Computer Society of India and the ACM-Computer Science Teachers’ Association. She has 20 years of teaching, corporate, and research within the areas of her interest, which include business analytics, data mining, business intelligence, MIS, e-learning, and project management experience.

D. P. Goyal, PhD, Director and Professor at the Indian Institute of Management, Shillong, India, and is also a visiting professor at Aarhus University, Denmark. Prior to joining IIM Shillong, he was Professor at MDI¸ Gurgaon, India. He has more than 32 years of corporate, teaching, and research experience to his credit. His teaching and research interest areas include IS value, IS strategy, MIS, e-government, and business process management. He has published over 100 research papers in refereed international/national journals and conference proceedings. He is a member of various professional bodies and is associated with many business schools and universities in the capacity of member of Board of Governors, Academic Council, Board of Studies, Academic Advisory Board, etc. He has been a consultant to the government of India for various assignments, and has authored almost 20 books, including textbooks on management information systems, IT project management, and enterprise resource planning.