نتایج جستجو برای: single frequency receiver

تعداد نتایج: 1340589  

Journal: :IET Communications 2011
Mohammad Lari Seyed Aidin Bassam Abbas Mohammadi Fadhel M. Ghannouchi

A design technique to realise a low-complexity multiple-input multiple-output (MIMO) receiver using a timemultiplexed single front-end receiver is introduced. The architecture uses a simple front-end receiver where it delivers radio frequency signals to baseband section. The theory behind this architecture is analysed and the diversity gain of the proposed receiver is investigated. This simple ...

2012
Yu Deyue Niclas Björsell Efrain Zenteno

................................................................................................................................................... i Acknowledgment .................................................................................................................................... ii Table of contents .................................................................................

Journal: :IJMCMC 2009
Inderjeet Kaur

In the present article an attempt is made to compare multi-carrier and single carrier modulation schemes for wireless communication systems with the utilization of fast Fourier transform (FFT) and its inverse in both cases. With the assumption that in OFDM (orthogonal frequency division multiplexing), the inverse FFT transforms the complex amplitudes of the individual sub-carriers at the transm...

Journal: :IEEE Transactions on Wireless Communications 2021

5G mmWave MIMO systems enable accurate estimation of the user position and mapping radio environment using a single snapshot when both base station (BS) are equipped with large antenna arrays. However, massive arrays initially expected only at BS side, likely leaving users one or very few antennas. In this paper, we propose novel method for single-snapshot localization in more challenging case ...

2013
Harri Saarnisaari

Future military waveforms are most probably implemented on software defined radios capable to handle several waveforms. Implementation of several waveforms would require design of several receiver chains. In order to ease these design tasks, this paper describes a universal frequency domain baseband receiver structure. The structure may be used as a starting point to design receiver basebands f...

2013
Inderjeet Kaur Y. K. Mathur

In the present paper an attempt is made to compare multicarrier and single carrier modulation schemes for wireless communication systems with the utilization of fast Fourier transform (FFT) and its inverse in both cases. With the assumption that in OFDM (orthogonal frequency division multiplexing), the inverse FFT transforms the complex amplitudes of the individual sub-carriers at the transmitt...

1998
Arvin R. Shahani Derek K. Shaeffer Hirad Samavati Hamid R. Rategh Maria del Mar Hershenson Daniel J. Eddleman Mark A. Horowitz Thomas H. Lee

A phase-locked-loop (PLL)-based frequency synthesizer incorporating a phase detector that operates on a windowing technique eliminates the need for a frequency divider. This new loop architecture is applied to generate the 1.573-GHz local oscillator (LO) for a Global Positioning System receiver. The LO circuits in the locked mode consume only 36 mW of the total 115-mW receiver power, as a resul...

2003
M. JUNTTI

Future wireless communication systems will require high data-rates in multiuser environments. Multicarrier code-division multiple-access (MC-CDMA) has emerged as an attractive technique for broadband communications, offering efficient utilization of bandwidth and robust performance in multipath channels. In this paper, coded downlink MC-CDMA is combined with the concept of LST architectures. Su...

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