Dual-polarized wireless communications: from propagation models to system performance evaluation

Oestges, Claude; Clerckx, Bruno; Guillaud, Maxime; Debbah, M.

doi:10.1109/t-wc.2008.070540

Cited by 200 publications

(148 citation statements)

References 31 publications

(54 reference statements)

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“…Ideally, the cross-polar scatter elements H hv m and H vh m of (10) should be zero [17]; however, this does not hold true, because of two mechanisms of depolarization: the use of imperfect cross-polar isolation (XPI) antennas and the presence of wave scattering, represented by a cross-polar ratio (XPR) in the propagation channels. These effects are combined into an overall cross-polar discrimination parameter (XPD), which is defined as the ratio between the power in the orthogonal (or cross-polar) elements to the received power in the co-polar elements when the antenna is excited with a polarized wave in the co-polar element.…”

Section: B Link Characterisation Of Dual-polarized Antennamentioning

confidence: 99%

“…which are link channel responses in (17). The input bitstreams are pairwise separated into two groups b 0,i and b 1,i , for 0 ≤ i ≤ N b , forming two 2 N b -ary complex symbols, which are mapped onto two perpendicular Argand planes intercepting at the origin of the 4D space [10].…”

Section: Quaternion Mimo-ofdm Systemmentioning

confidence: 99%

“…In typical MIMO communication systems, as described in [17], antenna spacings of at least half of the link wavelength at the subscriber unit and ten wavelengths at the base station are required to achieve significant multiplexing and/or diversity gains. Thus, the possible use of co-located orthogonally polarized antennas is an effective alternative for space and cost reduction.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Construction and Analysis of Quaternion MIMO-OFDM Communications Systems

Meloni

Ninahuanca

Junior

2017

JCIS

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Abstract-Wireless communications systems with progressively higher spectral efficiency have been investigated in past decades. A promising area of research is the use of hypercomplex algebras, notably, the use of the quaternion algebra. This paper considers the construction of multiple-input-multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) using the algebra of quaternions. Several construction techniques for quaternion orthogonal code designs have been proposed in recent years, which offer the possibility to explore diversities in various domains, such as space, time, frequency, and polarization, in addition to combinations thereof. This paper presents a formulation for quaternion MIMO-OFDM in matrix form as an extension of the classical formulation that uses complex variables. Quaternions allow elegant representation of pairs of radiant elements in physical antennas configured for crosspolarized propagation. Several simulations validate the proposed method in diverse scenarios for wireless communications, in which combined diversities have been exploited.

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Section: B Link Characterisation Of Dual-polarized Antennamentioning

confidence: 99%

Section: Quaternion Mimo-ofdm Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Construction and Analysis of Quaternion MIMO-OFDM Communications Systems

Meloni

Ninahuanca

Junior

2017

JCIS

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“…Experimental channel data was generated based on the phenomenon reported in [6] and [8] that the cross-polar components, h RL and h LR , should ideally be zero but are never quite the case in practical dual polarised systems. Hence for the synthetic channel data analysed in this paper, these components were made to be considerably weaker than the co-polar components depending on the receiving antennas XPD (represented by M in Figure 3) which were varied from 3dB to 18dB in order to determine their effects on system performance.…”

Section: Synthetic Channel Datamentioning

confidence: 99%

Markov chain analysis for land mobile satellite MIMO channels

Ekpe¹,

Brown²,

Evans³

2009

IET Conference Publications

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In this paper, a Markov chain analysis is performed to uncover the duration statistics of a land mobile satellite system capable of switching between MIMO and Dual Circular Polarisation Multiplexing (DCPM). Capacities have been computed using synthetic and measurement campaign data to show that DCPM is a viable alternative to MIMO and depends on the cross-polar discrimination (XPD) ratio exceeding a certain minimum value.

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“…With recent advances in wireless communication systems for commercial and strategic applications, the polarization diversity achieved by dual polarized antenna is explored to improve the channel capacity and link reliability [1,2]. The analysis of the uses of dual polarized antenna concludes that the polarization diversity is best suited for the urban environment with Rayleigh multipath fading channels [3,4]. The dual polarized antennas have advantage in terms of space requirement and overall system cost as compared to traditional space diversity technique.…”

Section: Introductionmentioning

confidence: 99%

An Array of Broadband Dual Polarized Electromagnetically Coupled Microstrip Antennas

Mishra¹,

Jahagirdar²,

Kumar³

2013

PIER C

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Abstract-In this paper, design of broadband dual polarized electromagnetically coupled antenna array is proposed to achieve high isolation between two orthogonal ports. A dual polarized electromagnetically coupled microstrip antenna is designed with a suspended radiating element placed in inverted microstrip configuration and excited by two orthogonal microstrip line feeds to achieve broad bandwidth and high isolation. The antenna is designed for 5.8 GHz frequency band. The antenna design is extended to 2 × 2 antenna array, with top layer radiating elements electromagnetically coupled to the open microstrip feed line network. The 6 × 6 antenna array is designed using 2 × 2 sub arrays with power divider network. The power divider network is integrated on the back side of the feed network to feed 2 × 2 antenna sub arrays. The 6 × 6 antenna array achieves VSWR < 2 bandwidth of 26% for Port 1 and 28% for Port 2. The 6 × 6 antenna array has measured gain of 22 dBi at 5.8 GHz with isolation between two orthogonal ports > 30 dB.

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Dual-polarized wireless communications: from propagation models to system performance evaluation

Cited by 200 publications

References 31 publications

Construction and Analysis of Quaternion MIMO-OFDM Communications Systems

Construction and Analysis of Quaternion MIMO-OFDM Communications Systems

Markov chain analysis for land mobile satellite MIMO channels

An Array of Broadband Dual Polarized Electromagnetically Coupled Microstrip Antennas

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