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Direct-conversion transceiver obtains increasing attentions due to its low power consumption, but it confronts with serious IQ imbalance. In this paper, a three-stage treatment of transmitter/receiver (TX/RX) IQ imbalance and channel, in the presence of carrier frequency offset (CFO), is proposed for single-carrier-frequency-domain-equalization (SC-FDE) systems. First, RX IQ imbalance and CFO are...
Due to the extremely high oscillation frequency of 60 GHz systems, phase noise (PN) imported at both transmitter (Tx) and receiver (Rx) is significant, which degrades the transmission performance. This paper proposes an architecture employing iterative Tx and Rx PN compensation (ITR-PNC) for 60 GHz systems with single-carrier frequency-domain equalization (SC-FDE) transmission. The ITR-PNC iteratively...
In order to analyze the performance on the Orthogonal Frequency Division Multiplex (OFDM) physical layer (PHY) of IEEE 802.11ad, a transceiver is designed based on the draft. The impacts of hardware impairments on the Bit Error Rate (BER) performance are studied, including phase noise and power amplifier (PA) nonlinear distortion. Simulation results indicate that phase noise makes a smaller effect...
Ultra Wideband (UWB) technology has attracted widespread attention all over the world because of potential applications in high-rate short-range communications. The existing UWB technologies, e.g., the direct-sequence UWB (DS-UWB) and the multi-band orthogonal frequency division multiplexing (MB-OFDM), have high complexity, which results in high power consumption and cost, and limits its marketing...
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