A universal encoding scheme for MIMO transmission using a single active element for PSK modulation schemes

This paper introduces the principle and key technology of single radio frequency (RF) link Multiple-Input Multiple-Output (MIMO) system based on a switched parasitic antenna (SPA). The software SystemVue is adopted for signal processing and system-level simulation with merit of strong operability and high efficiency, which provides tools for the single RF link MIMO system research. A single RF link of a 2 × 2 MIMO system based on the switch parasitic antenna is proposed in this paper. The binary codes are modulated to the baseband Binary Phase Shift Keying (BPSK) signals and transmitted with a 2.4 GHz carrier frequency. The receiver based on the super-heterodyne prototype adopts the channel equalization algorithm for restoring symbols, and it can effectively reduce the system error rate. The simulation results show that the MIMO system built on the platform can achieve equivalent performance with traditional MIMO system, which validates the effectiveness of the proposed scheme. The switched parasitic antenna and equalization algorithm provide new research ideas for single RF link MIMO system and have theoretical significance for further research.

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“…By the expansion of inner product of random variables, the value of all g ij can be obtained according to (23):…”

Section: Receiver Designmentioning

confidence: 99%

Performance Analysis of MIMO System with Single RF Link Based on Switched Parasitic Antenna

Yang

Meng

et al. 2017

Symmetry

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“…Although use of orthogonal basis is common in communications, it usually does not bring any benefits on its own, it simplifies detection by keeping the noise uncorrelated. This means there are no clear advantages in designing the RF system to support orthogonal patterns as used in [3] [4]. The motivation in [3] [4] is to reduce the number of transmit chains and no other benefits are discussed.…”

Section: Introductionmentioning

confidence: 99%

Media-based modulation: Converting static Rayleigh fading to AWGN

Khandani

2014

2014 IEEE International Symposium on Information Theory

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Abstract-It is shown in [1] that embedding information in the (intentional) variation of the transmission media (end-toend channel) can offer significant gains vs. traditional SISO, SIMO and MIMO systems. In particular, it is shown that using a single transmit antenna and K receive antennas; significant savings in energy vs. a K × K MIMO can be achieved [1]. This article proves that, a 1 × K media-based modulation over a static multi-path channel asymptotically achieves the capacity of K parallel AWGN channels, where for each unit of energy over the single transmit antenna, the effective energy for each of the K AWGN channels is the statistical average of channel fading. The rate of convergence is computed. Significant gains can be realized even in a SISO media-based setup. An example for the practical construction of the system and its realistic RF simulation are presented. Issues of equalization and selection gain are discussed.

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“…Indeed, the degrees of freedom (DoFs) of the electrically steerable passive array radiator (ESPAR) antennas have been explored by providing the expansion of the far field pattern in a complete set of orthonormal basis functions, or basis patterns. The operation was initially described in [11] and then a generalized and analytic methodology was presented in [12,13]. This alternative analysis takes advantage of the beamforming capabilities provided by the parasitic elements that are connected to tunable loads, and determines the DoFs at the beamspace domain.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable parasitic antennas for compact mobile terminals in multiuser wireless systems

Barousis

Kanatas

Kalis

et al. 2012

J Wireless Com Network

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This article considers the exploitation of parasitic antenna arrays in multi-user (MU) wireless communication systems by using their adaptive beamforming capabilities in order to improve the average system throughput. The use of parasitic arrays and especially the electrically steerable passive array radiator (ESPAR) antennas enables the design of terminals with a single RF front-end and reduced antenna dimensions, i.e., lightweight and compact mobile terminals. Although the beamforming capabilities of active element arrays at the receiver have been well investigated in the past, this article highlights the potentials of pattern reconfigurable parasitic arrays based on the beamspace representation of the ESPAR antenna. The advantages of using ESPAR at the receiving terminal are examined both in opportunistic beamforming and in MIMO broadcast channel MU systems, optimizing correspondingly the SNR or the SINR of the forward link.

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A universal encoding scheme for MIMO transmission using a single active element for PSK modulation schemes

Cited by 111 publications

References 24 publications

Performance Analysis of MIMO System with Single RF Link Based on Switched Parasitic Antenna

Performance Analysis of MIMO System with Single RF Link Based on Switched Parasitic Antenna

Media-based modulation: Converting static Rayleigh fading to AWGN

Reconfigurable parasitic antennas for compact mobile terminals in multiuser wireless systems

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