Untitled

Molisch, Andreas F.

doi:10.1023/a:1018350032615

Cited by 60 publications

(90 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, the small-scale fading is determined by a variation of its normalized magnitude, while the pathloss and shadowing are derived from the mean magnitude of them; the time-varying channel impulse responses and instantaneous Doppler spectrum is derived from the time-varying transfer function using the Fourier transform [19], [20]. Power delay profiles (PDPs) and the Doppler spectrum yields from an ensemble average of the instantaneous realizations.…”

Section: Characteristics Parameters Of Radio Channelsmentioning

confidence: 99%

“…Power delay profiles (PDPs) and the Doppler spectrum yields from an ensemble average of the instantaneous realizations. Their first-and second-order moments are the mean delay, delay spread, and Doppler spread [20]. Similarly it is straightforward to derive the Tx and Rx power angular spectrum (PAS) by applying the Fourier transform to the transfer functions across antenna array elements.…”

Section: Characteristics Parameters Of Radio Channelsmentioning

confidence: 99%

“…The second order moment of the PAS is called the angular spread. As a relationship of the Fourier pair, the delay, Doppler, and angular spreads are inversely proportional to the channel coherence over the frequency, time, and distances [19], [20].…”

Section: Characteristics Parameters Of Radio Channelsmentioning

confidence: 99%

See 2 more Smart Citations

Channel Models and Beamforming at Millimeter-Wave Frequency Bands

Haneda

2015

IEICE Trans. Commun.

View full text Add to dashboard Cite

SUMMARYMillimeter-wave (mm-wave) radio is attracting attention as one of the key enabling physical layer technologies for the fifthgeneration (5G) mobile access and backhaul. This paper aims at clarifying possible roles of mm-wave radio in the 5G development and performing a comprehensive literature survey on mm-wave radio channel modeling essential for the feasibility study. Emphasis in the literature survey is laid on grasping the typical behavior of mm-wave channels, identifying missing features in the presently available channel models for the design and evaluation of the mm-wave radio links within the 5G context, and exemplifying different channel modeling activities through analyses performed in the authors' group. As a key technological element of the mm-wave radios, reduced complexity beamforming is also addressed. Design criteria of the beamforming are developed based on the spatial multipath characteristics of measured indoor mm-wave channels.

show abstract

Section: Characteristics Parameters Of Radio Channelsmentioning

confidence: 99%

Section: Characteristics Parameters Of Radio Channelsmentioning

confidence: 99%

See 1 more Smart Citation

Channel Models and Beamforming at Millimeter-Wave Frequency Bands

Haneda

2015

IEICE Trans. Commun.

View full text Add to dashboard Cite

show abstract

“…One way of determining AoA is to use an antenna array [1]. By having several stationary antenna elements at known locations, the phase difference of the received signal between them can be used to estimate the AoA.…”

Section: Introductionmentioning

confidence: 99%

“…However, instead of using stationary antenna elements, a single antenna element can just as well be used as long as the position of the element is known when the received signal is sampled and the channel remains stationary during the movement. This configuration is known as a virtual antenna array [1]. Such an array has different properties compared to a real antenna array with respect to (w.r.t.)…”

Section: Introductionmentioning

confidence: 99%

Optimal virtual array length under position imperfections

Mannesson

Bernhardsson

Yaqoob

et al. 2014

2014 IEEE 8th Sensor Array and Multichannel Signal Processing Workshop (SAM)

View full text Add to dashboard Cite

MIMO handheld antenna design approach using characteristic mode concepts

Ethier

Lanoue

McNamara

2008

Micro & Optical Tech Letters

View full text Add to dashboard Cite

In summary, we proposed and demonstrated a C band TEDFL which employs a BFM and a TFBG to form the laser cavity. The BFM acts as a broadband reflector both for the lasing signal and pump source. At pumping power of 100 mW, stable laser output power of 21.35 dBm is obtained with the threshold pumping power as small as 4.7 mW. A SMSR of 57.9 dB and 16 nm tuning range are demonstrated. This BFM-based TEDFL with graceful features as mentioned may find vast applications in fiber optics communications and fiber sensor technology. , Temperature-tuned erbium-doped fiber ring laser with polymer-coated fiber grating, Opt Commun 202 (2002), 331-334. ABSTRACT: In handheld communications devices there is not much room for the placement of antennas. This problem is exacerbated when more than one antenna is needed for use in a MIMO communications system. It is then useful to be able to utilize some of the existing device structure to form the required antennas. In this article, we show how the characteristic mode theory can be used to achieve this in a way that results in antennas with the low envelope correlation preferred for MIMO antennas. ABSTRACT: A broadband, circular switched parasitic array with two active elements, suitable for DVB-T applications at the V-UHF band is designed with the aid of a genetic algorithm. Numerical as well as measurements results are presented for a single switch position. Simulation results are also presented for switched-beam array operation, using the measured antenna radiation patterns.

show abstract

Untitled

Cited by 60 publications

References 10 publications

Channel Models and Beamforming at Millimeter-Wave Frequency Bands

Channel Models and Beamforming at Millimeter-Wave Frequency Bands

Optimal virtual array length under position imperfections

MIMO handheld antenna design approach using characteristic mode concepts

Contact Info

Product

Resources

About