Multiple Antenna Techniques for Wireless Mesh Networks

Gkelias, Athanasios; Leung, Kin K.

doi:10.1007/978-0-387-68839-8_11

Cited by 9 publications

(7 citation statements)

References 31 publications

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“…Routers with multi-antenna transceivers have higher gain and provide better signal quality [58]. Especially for a sophisticated environment like urban areas that suffer from multipath effects and signal distortions, multi-antenna systems help amplify and rebuild signal levels.…”

Section: H Directional Antennas and Mimomentioning

confidence: 99%

Survey of Experimental Evaluation Studies for Wireless Mesh Network Deployments in Urban Areas Towards Ubiquitous Internet

Vural

Wei²,

Moessner

2013

IEEE Commun. Surv. Tutorials

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Abstract-Establishing wireless networks in urban areas that can provide ubiquitous Internet access to end-users is a central part of the efforts towards defining the Internet of the future. In recent years, wireless mesh network (WMN) backbone infrastructures are proposed as a cost effective technology to provide city-wide Internet access. Studies that evaluate the performance of city-wide mesh network deployments via experiments provide essential information on various challenges of building them. In this survey, we particularly focus on such studies and provide brief conclusions on the problems, benefits, and future research directions of city-wide WMNs.

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Section: H Directional Antennas and Mimomentioning

confidence: 99%

Survey of Experimental Evaluation Studies for Wireless Mesh Network Deployments in Urban Areas Towards Ubiquitous Internet

Vural

Wei²,

Moessner

2013

IEEE Commun. Surv. Tutorials

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“…To perform the computation of the desired channel at the receiver end, channel 2070 estimation approaches can be used which improves the device capacity of OFDM system [7]. The channel estimation mechanisms mainly focus on the conceptuality of the favorable multiple path channels [8], but the existing techniques have introduced OFDM concepts with the real-time implementation of the multiple paths channels having a wide bandwidth that brings in OFDMA architecture [9,10]. These multiple path communication channels acquire some propagation delays.…”

Section: Introductionmentioning

confidence: 99%

Integrated approach for efficient power consumption and resource allocation in MIMO-OFDMA

Archana¹,

Surekha²

2020

IJECE

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The growing interest towards wireless communication advancement with smart devices has provided the desired throughput of wireless communication mechanisms. But, attaining high-speed data packets amenities is the biggest issue in different multimedia applications. Recently, OFDM has come up with the useful features for wireless communication however it faces interference issues at carrier level (intercarrier interferences). To resolve these interference issues in OFDM, various existing mechanisms were utilized cyclic prefix, but it leads to redundancy in transmitted data. Also, the transmission of this redundant data can take some more power and bandwidth. All these limitations factors can be removed from a parallel cancellation mechanism. The integration of parallel cancellation and Convolution Viterbi encoding and decoding in MIMO-OFDMA will be an effective solution to have high data rate which also associations with the benefits of both the architectures of MIMO and OFDMA modulation approaches. This paper deals with this integrated mechanism for efficient resource allocation and power consumption. For performance analysis, MIMO-OFDMA system is analyzed with three different approaches likeMIMO-OFDM system without parallel cancellation (MIMO-OFDMA-WPC), MIMO-OFDMA System with parallel cancellation (MIMO-OFDMA-PC) and proposed IMO-OFDMA system with parallel cancellation and Convolution Viterbi encoding/decoding (pMIMO-OFDMA-PC &CVed) for 4x4 transmitter and receiver. Through performance analysis, it is found that the proposed system achieved better resource allocation (bandwidth) with high data rate by minimized BER rate and achieved least power consumption with least BER.

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“…Even though the existing OFDM techniques have multipath channels offering broad bandwidth resulting OFDM architecture acquires some propagation delays [6][7]. Also, these architectures may carry some sparse data were the conventional approaches were failed to compute sparse data [8]. Hence, this paper focuses on channel estimation, which favors the multipath path channels and reduces BER.…”

Section: Introductionmentioning

confidence: 99%

Performance Enhancement in MIMO-OFDMA System

Surekha*

2019

IJITEE

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The systematic advancement in wireless communication has provided many significant aspects towards communication domain. However, obtaining the high-speed data transmission is still a biggest concern in various multimedia-based applications. Multiple Input Multiple Output - Orthogonal Frequency Division Multiplexing Access (MIMO-OFDMA) based communication is widespread towards research area. In addition, the combination of MIMO-OFDMA with the steering antenna can lead to improved communication efficiency and offer diversity gain without changing radio frequency (RF). This paper introduces systems for power allocation and resource allocation by A) low complex compressive channel approximation (CSCE) and b) combined parallel cancelation and Viterbi encoding / decoding (PCVed). The outcome of compressive sensing based system brings reduced Bit Error Rate (BER) and less computational complexity while the performance analysis PCVed with different approaches for 4x4 transmitter and receiver.

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Multiple Antenna Techniques for Wireless Mesh Networks

Cited by 9 publications

References 31 publications

Survey of Experimental Evaluation Studies for Wireless Mesh Network Deployments in Urban Areas Towards Ubiquitous Internet

Survey of Experimental Evaluation Studies for Wireless Mesh Network Deployments in Urban Areas Towards Ubiquitous Internet

Integrated approach for efficient power consumption and resource allocation in MIMO-OFDMA

Performance Enhancement in MIMO-OFDMA System

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