Virtual MISO Based Cross-Layer Cooperative Transmission Protocol in Ad Hoc Networks

In this paper, we propose a cross-layer protocol that is based on a form of cooperative transmission called Virtual Multi-Input Single-Output (VMISO). Specifically, we discuss the influence of rate, cluster size, and transmission range of the VMISO link on the whole performance improvements, where the key physical layer property that we focus on is an enlarged transmission range due to cooperative diversity. Further, the new protocol, termed the Joint Cross-layer Cooperative Transmission Protocol (JCCTP) including the VMISO routing protocol and the novel MAC protocol, presents the distributed approach of using VMISO links with a fixed cluster size, a given rate, and a certain transmission range, where we leverage the translation of physical layer advantages into higher layer better performances. Finally, we evaluate JCCTP with a flat Rayleigh fading channel model that accurately captures the nature of VMISO transmissions. As compared to using only SISO links and other VMISO links, our work achieves a great increase in the end-to-end throughput and a sharp decline in the end-to-end delay.

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A Physical Layer Network Coding Based Modify-and-Forward with Opportunistic Secure Cooperative Transmission Protocol

Mobile Networks and Applications ◽

10.1007/s11036-018-1157-1 ◽

2018 ◽

Vol 24 (2) ◽

pp. 464-479

Author(s):

Quoc-Tuan Vien ◽

Tuan Anh Le ◽

Huan X. Nguyen ◽

Tho Le-Ngoc

Keyword(s):

Network Coding ◽

Physical Layer ◽

Cooperative Transmission ◽

Transmission Protocol ◽

Physical Layer Network Coding

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Self-Correcting Time Synchronization Based on Cross Layer for Wireless Sensor Network

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.220-223.1871 ◽

2012 ◽

Vol 220-223 ◽

pp. 1871-1876

Author(s):

Feng Mei Liang ◽

Bin Liu

Keyword(s):

Wireless Sensor Network ◽

Sensor Network ◽

Time Synchronization ◽

Mac Protocol ◽

Physical Layer ◽

Wireless Sensor ◽

Cross Layer ◽

Synchronization Mechanism ◽

Synchronization Algorithm ◽

Crystal Oscillation

Due to energy restrictions, node distribution density and hardware computing power etc., the traditional time synchronization mechanism is not suitable for wireless sensor network. The paper discussed the main reason that caused asynchronization and proposed an improved time synchronization algorithm based on cross layer optimization for wireless sensor network. Considering the stability of crystal oscillation and the linearity of crystal deviation in the physical layer, the improved time synchronization mechanism implemented a self-correction by the cross-layer MAC protocol. Estimating the crystal oscillation drift, the crystal deviation had been self-corrected just by a few times data broadcast. The experiment on the MCU Si1000 physical layer platform has demonstrated the practicability of the algorithm. The synchronization algorithm is able to keep a stable network operation in the way of extending the synchronization period and reducing the synchronization cost. The synchronization mechanism is applicable to the active acquisition network, especially the realtime one.

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Secure Controlling System for Cross Layer Reliability for Ultra Huge Scale Framework

International Journal of Engineering and Advanced Technology - Regular Issue ◽

10.35940/ijeat.f1061.0886s219 ◽

2019 ◽

Vol 8 (6S2) ◽

pp. 229-231

Keyword(s):

Physical Layer ◽

Ultra Wideband ◽

Cross Layer ◽

Coordination Structure ◽

State Data ◽

Controlling System ◽

End To End ◽

Uwb Radio

Ultra wideband (UWB) radio ascends as an attractive physical layer for extraordinarily chosen frame (MANET) adaptability. Guiding in MANET is a study that can be inferred from the vibrant thinking of the topology system and the impediments to resources. In this document, UWB is proposing a stable coordination structure concentrating on the flimsiness problem from the foggy area of communication. This tool is a cross-layer shift of tradition-controlled uncommonly delegated on-ask for vector (AODV), called CLS AODV. The managing exposure calculation is associated by showing source planning and extraordinarily chose on-request multipath remove vector (AOMDV) organizing. Rather than the open way in AODV, the got sign quality can be used to reveal shady territory wish affiliation state data, just as course state seeing. A preventive neighborhood fix course gauge dependent on HELLO knows about keeping the affiliation breakage event. Greetings notification is extended not only for neighborhood identification and exchange of neighborhood data, but also as an ON / OFF fee for controlling neighborhood location layout and HELLO design. The proliferation shows the progression of CLS AODV to the extent of the package incident and the typical end-to-end acknowledgement without exchanging the differentiated performance.

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