With the current trend in integration of more complex systems on chip there is a need for better communication infrastructure on chip that will increase the available band-width and simplify the interface verification. We have previously proposed a circuit switched two-dimensional mesh network known as SoCBUS that increases performance and lowers the cost… (More)
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—In this paper, hardware implementation aspects of the channel estimator in 3GPP LTE terminals are investigated. A channel estimation ASIC, which handles the real-time channel estimation, is presented. Compared to traditional correlator-based channel estimators, the channel estimator presented boosts the throughput at feasible silicon cost by adopting a… (More)
— Complex matrix inversion is a very computationally demanding operation in advanced multi-antenna wireless communications. Traditionally, systolic array-based QR decomposition (QRD) is used to invert large matrices. However, the matrices involved in MIMO baseband processing in mobile handsets are generally small which means QRD is not necessarily… (More)
This paper presents a linear minimum mean square error (LMMSE) symbol detector for MIMO-OFDM enabled mobile terminals. The detector is implemented using a pro-grammable baseband processor aimed for software-defined radio (SDR). Owing to the dynamic range supplied by the floating-point SIMD datapath, special algorithms can be adopted to reduce the… (More)
CRC is important for error detection in communication systems. With transmission speeds of several Gb/s the high-speed implementation is a bottleneck. A circuit with two parallel calculation units has been implemented in a 0.35 micron process. They use 32 bits and 64 bits parallel input respectively. Chip measurements prove throughput higher than 5.76 Gb/s,… (More)
This paper presents a case study of a single-chip 3G WCDMA/FDD basestation implementation based on a circuit-switched network on chip. As the amount of transistors on a chip continues to increase, so does the possibility to integrate more functionality onto every chip. By combining general-purpose and application-specific hardware , it is possible to… (More)
— The emerging era of embedded computing demands both high computing power and flexibility to accommodate various applications. This paper presents a new heterogeneous multiprocessor SoC platform targeted at several application domains. The platform is scalable and can be tailored according to various scenarios.