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This paper presents the implementation and optimization of the SCME (Spatial Channel Model Extension) on the GPP (General Purpose Processor) platform using SSE (Streaming SIMD Extensions) instructions and multithreading technique. The SCME which is the expansion of the SCM (Spatial Channel Model) introduces the concept of “mid-paths” and can support up to 100 MHz bandwidths in 2∼5 GHz frequency range...
In order to further improve the spectrum efficiency and peak data rate, uplink MIMO (multiple - input and multiple-output) has been introduced into LTEA (Release 10 and beyond). As the large dimensional MIMO increases system complexity, it is a challenge for the implementation of real-time MIMO equalizer. The massive floating-point computing power and flexible multi-core parallelism of the GPP (general...
In this paper, the convolutional coding and decoding of 802.11n are improved on general purpose processor (GPP) software defined radio(SDR) platforms. The prototype makes extensive use of features of contemporary processor architectures to accelerate signal processing and satisfy protocol real-time requirements of IEEE802.11n, including large low-latency caches to store lookup tables, and single instruction...
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