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The QR decomposition is an important, but often underestimated prerequisite for pseudoor non-linear detection methods such as successive interference cancellation or sphere decoding for multiple-input multiple-output (MIMO) systems. The ability of concurrent iterative sorting during the QR decomposition introduces a moderate overall latency, but provides(More)
Data frame AbstractThe paper describes an algorithm and a corresponding VLSI architecture for the implementation of linear MMSE Idle Dtat Idle detection in packet-based MIMO-OFDM communication systems. The advantages of the presented receiver architecture are low latency, high-throughput, and efficient resource utilization, MIMO detectioni since the(More)
Next generation wireless local area networks (WLANs) such as the IEEE 802.11n standard are expected to rely on multiple antennas at both transmitter and receiver to increase throughput and link reliability. However, these improvements come at a significant increase in signal processing and hence hardware complexity compared to existing single-antenna(More)
Introduced in 1999, differential power-analysis (DPA) attacks pose a serious threat for cryptographic devices. Several countermeasures have been proposed during the last years. However, none of them leads to implementations that are provably resistant against DPA. A promising class of DPA countermeasures is masking. In this article we discuss(More)
Mobile communication – anytime, anywhere access to data and communication services – has been continuously increasing since the operation of the first wireless communication link by Guglielmo Marconi. The demand for higher data rates, despite the limited bandwidth, led to the development of multiple-input multiple-output (MIMO) communication which is often(More)
The development of state-of-the-art wireless communication transceivers in semiconductor technology is a challenging process due to complexity and stringent requirements of modern communication standards such as IEEE 802.11n. This tutorial paper describes a complete design, verification, and performance characterization methodology that is tailored to the(More)
Future wireless LANs will increase the peak data rate by employing multiple antennas at both transmitter and receiver. Well designed synchronization algorithms are a prerequisite for meeting stringent QoS requirements. In particular OFDM modulation, which constitutes the basics for WLAN, is very sensitive to timing synchronization errors which incur(More)