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Parallel high throughput soft-output sphere decoder
2010 IEEE Workshop On Signal Processing Systems
Multiple-Input-Multiple-Output communication systems demand fast sphere decoding with high performance. We propose a high throughput soft-output fixed complexity sphere decoder (PFSD) that is parallel and has comparable performance to list fixed complexity sphere decoder (LFSD) and K-best sphere decoder. In addition, we propose a parallel QR decomposition algorithm to lower the preprocessing overhead, and a low complexity LLR algorithm to allow parallel update of LLR values. We demonstrate thedoi:10.1109/sips.2010.5624783 fatcat:yhj6h3u3zjgqrgyhhbqfubwrhu