Ismail Guvenc is a research engineer with DoCoMo USA Labs, where his research interests include UWB communications and position estimation, femtocell networks, relay networks, LTE systems and cognitive radio. He has published several standardization contributions for IEEE 802.15 and IEEE 802.16 standards, and holds 4 US patents, with another 15 pending US patent applications. Sinan Gezici is an Assistant Professor in the Department of Electrical and Electronics Engineering at Bilkent University, Turkey. His research interests are in the areas of signal detection, estimation and optimization theory, and their applications to wireless communications and localization systems. Among his publications in these areas is the recent book Ultra-Wideband Positioning Systems: Theoretical Limits, Ranging Algorithms, and Protocols. Zafer Sahinoglu is a Senior Principal Member of Technical Staff at Mitsubishi Electric Research Labs, where his current research interests include UWB localization, high efficiency wireless power transfer, low complexity space-time adaptive processing and game theoretic dynamic energy pricing. He has contributed significantly to MPEG-21, ZigBee, IEEE 802.15.4a and IEEE 802.15.4e standards and holds 2 European and 25 US patents, with 26 patents pending. Ulas C. Kozat is the Project Manager for the Network Architecture team at DoCoMo USA Labs. He has conducted research in the broad areas of wireless communications and communications networks, and has published mainly in cross-layer optimization, network modeling and performance analysis, and algorithm/protocol design.

• 1. Short range wireless communications and reliability Ismail Guvenc, Sinan Gezici, Zafer Sahinoglu and Ulas C. Kozat; Part I. High-Rate Systems: 2. High-rate UWB and 60 GHz communications Sinan Gezici and Ismail Guvenc; 3. Channel estimation for high-rate systems Zhongjun Wang, Yan Xin and Xiaodong Wang; 4. Adaptive modulation and coding for high-rate systems Ruonan Zhang and Lin Cai; 5. MIMO techniques for high-rate communications Wasim Q. Malik and André Pollok; Part II. Low-Rate Systems: 6. ZigBee networks and low-rate UWB communications Zafer Sahinoglu and Ismail Guvenc; 7. Impact of channel estimation on the reliability Harry Sheng; 8. Interference mitigation and awareness for improved reliability Huseyin Arslan, Serhan Yarkan, Mustafa E. Sahin and Sinan Gezici; 9. Characterization of Wi-Fi interference for dynamic channel allocation in WPANs Federico Penna, Claudio Pastrone, Hussein Khaleel, Maurizio A. Spirito and Roberto Garello; 10. Energy saving in low-rate systems Myung J. Lee and Tae Rim Park; Part III. Selected Topics for Improved Reliability: 11. Cooperative communications for reliability Andreas F. Molisch, Stark C. Draper and Neelesh B. Mehta; 12. Reliability through relay selection in cooperative networks Ramy Abdallah Tannious and Aria Nosratinia; 13. Fundamental performance limits in wideband relay architectures Özgür Oyman; 14. Reliable MAC layer and packet scheduling Ulas C. Kozat.