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This paper focuses on the energy efficiency of two-stage cooperative multicast with CPC (CP combining). Aiming to provide a coverage of 95%, cooperative multicast with SC (selective combining) has been analytically investigated and a power saving of 43% can be achieved compared with conventional one-stage multicast [9]. However, CP combining which is more practical can provide a stronger received...
This letter presents a power amplifier (PA) for IEEE802.11p applications, adopting a new power combining technique in a 250 nm GaN process. The proposed technique is used to improve the drain efficiency (DE) across the output power levels and meet the stringent error vector magnitude (EVM) requirement without any complicated input and output networks. The PA is implemented with a fabricated GaN die...
This paper presents a novel high-speed, low-complexity 128/64-point radix-24 FFT/IFFT processor for the applications in a high-throughput MIMO-OFDM systems. The high radix radix-24 multi-path delay feed-back (MDF) FFT architecture provides a higher throughput rate and low hardware complexity by using a four-parallel data-path scheme. The proposed processor not only supports the operation of FFT/IFFT...
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