Cooperative relaying schemes for narrow-band frequency hopping wireless ad hoc networks

Date

2011-08-29

Author

Yenihayat, Güven
Onat, Furuzan Atay
Kolaǧasioǧlu, Ertuǧrul
Yılmaz, Ali Özgür

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

203
views

0
downloads

Cooperative relaying is a promising technique for improving the performance of weak communication links in wireless networks by exploiting spatial diversity induced by relay transmissions. This paper considers cooperative relaying schemes for a narrow- band frequency hopping system. A novel hybrid relaying scheme called opportunistic hybrid relaying, which is specifically designed for this system, is presented. Unlike most relaying schemes in the literature, opportunistic hybrid relaying uses bandwidth efficiently by allowing the relays to transmit in non-orthogonal channels without any considerable coordination overhead among the relays. A joint channel estimation and data detection scheme is considered to be used at the destination to combine relay signals. It is shown that this scheme compares favorably to similar relaying schemes in the literature in terms of average success rate.

Subject Keywords

Relays , Channel estimation , Strontium , Receivers , Diversity reception, Real time systems, Decoding

URI

https://hdl.handle.net/11511/52381

DOI

https://doi.org/10.1109/vetecs.2011.5956656

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Network density estimators and density-aware wireless networks Eroğlu, Alperen; Onur, Ertan; Department of Computer Engineering (2020-11) New network architectures and communication technologies continue to emerge to meet rapidly increasing and changing user demands requiring continuous connectivity and high data rate transmissions. These ubiquitous infrastructures result in a paradigm shift in mobile communications with the advent of mobile robots equipped with sensors, unmanned aerial vehicles, and mobile small-cells, which makes the future networks highly dynamic. This dynamism poses unpredictable variations in the network density causing ...
Joint Mitigation of IQ Imbalance and Power Amplifier Impairments by Real Valued Time Delay Neural Networks Yeşil, Soner; Gürtunca, Burak; Yılmaz, Ali Özgür (2019-08-22) This paper represents a neural network based joint mitigation of the IQ imbalance and power amplifier nonlinearities that cause degradation in the transmit signal quality of the wireless communication systems. A Real Valued Time Delay Neural Network architecture for this purpose has been verified on a hardware including cascaded NXP-MD8IC925 and NXPBLF8G10LS power amplifier components performing a total of 46dB gain. The test setup has been controlled over MATLAB in order to have a closed loop adaptive digi...
Parallel decodable channel coding implemented on a MIMO testbed Aktaş, Tuğcan; Yılmaz, Ali Özgür; Department of Electrical and Electronics Engineering (2007) This thesis considers the real-time implementation phases of a multiple-input multiple-output (MIMO) wireless communication system. The parts which are related to the implementation detail the blocks realized on a field programmable gate array (FPGA) board and define the connections between these blocks and typical radio frequency front-end modules assisting the wireless communication. Two sides of the implemented communication testbed are discussed separately as the transmitter and the receiver parts. In a...
Optimizing the Performance of Rule-Based Fuzzy Routing Algorithms in Wireless Sensor Networks Sert, Seyyit Alper; Yazıcı, Adnan (2019-06-01) Effective data routing is one of the crucial themes for energy-efficient communication in wireless sensor networks (WSN). In the WSN research domain, fuzzy approaches are in most cases superior to well-defined methodologies, especially where boundaries between clusters are unclear. For this reason, a significant number of studies have recently proposed fuzzy-based solutions for the problems encountered in WSNs. Rule-based fuzzy systems are part of these widespread fuzzy-based solutions that often involve so...
Mobile traffic modelling for wireless multimedia sensor networks in IoT Al-Turjman, Fadi; Radwan, Ayman; Mumtaz, Shahid; Rodriguez, Jonathan (2017-11-01) Wireless sensor networks suffer from some limitations such as energy constraints and the cooperative demands essential to perform multi-hop geographic routing for real-time applications. Quality of Service (QoS) depends to a great extent on offering participating nodes an incentive for collaborating. In this paper, we present a novel traffic model for a new-generation of sensor networks that supports a wide range of communication-intensive real-time multimedia applications. The model is used to investigate ...

Citation Formats

G. Yenihayat, F. A. Onat, E. Kolaǧasioǧlu, and A. Ö. Yılmaz, “Cooperative relaying schemes for narrow-band frequency hopping wireless ad hoc networks,” 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52381.