Impact Study and Evaluation of Higher Modulation Schemes on Physical Layer of Upcoming Wireless Mobile Networks

Haboobi, Heba; Kadhum, Mohammad R.

doi:10.14569/ijacsa.2019.0100583

Cited by 6 publications

(3 citation statements)

References 17 publications

(25 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Results also show that the higher the M-PSK modulation order, the higher the performance is, whereas, for the M-QAM modulation, the higher the modulation order is, the lower the performance is. The reason is that the M-QAM modulation is highly affected by the received Signal Noise Ratio (SNR) or Signal to Interference plus Noise Ratio (SINR), which requires higher levels of transmitter power and Receiver gain, especially with the PNC transmissions, where two signal received at the same time, in contrast with the M PSK modulation, which is highly resistant to the SNR or SINR [52,53,24,54,55,56].…”

Section: Results Of the Twrc Topologymentioning

confidence: 99%

Distributed Physical-layer Network Coding MAC protocol

Aissaoui,

Houaidia,

Van Den Bossche

et al. 2024

Ad Hoc Networks

View full text Add to dashboard Cite

Section: Results Of the Twrc Topologymentioning

confidence: 99%

Distributed Physical-layer Network Coding MAC protocol

Aissaoui,

Houaidia,

Van Den Bossche

et al. 2024

Ad Hoc Networks

View full text Add to dashboard Cite

“…For example, let us consider the waveform orthogonal frequency division multiplexing (OFDM): schemes based on quadrature amplitude modulation (QAM) would be preferred over the ones based on phase-shift keying (PSK) because of the larger distances among their adjacent constellation points (although PSK can be more energy efficient). Moreover, it is worth recalling the importance of the channel type: for example, compared to the additive white Gaussian noise (AWGN) channel, in a Rayleigh channel, the BER is higher and less dependent on the SNR [176].…”

Section: A Modulation and Coding Schemesmentioning

confidence: 99%

Post-Disaster Communications: Enabling Technologies, Architectures, and Open Challenges

Matracia

Saeed

Kishk

et al. 2022

IEEE Open J. Commun. Soc.

View full text Add to dashboard Cite

The number of disasters has increased over the past decade where these calamities significantly affect the functionality of communication networks. In the context of 6G, airborne and spaceborne networks offer hope in disaster recovery to serve the underserved and to be resilient in calamities. Therefore, our paper reviews the state-of-the-art literature on post-disaster wireless communication networks and provides insights for the future establishment of such networks. In particular, we first give an overview of the works investigating the general procedures and strategies for facing any large-scale disaster. Then, we present technological solutions for post-disaster communications, such as the recovery of the terrestrial infrastructure, installing aerial networks, and using spaceborne networks. Afterwards, we shed light on the technological aspects of post-disaster networks, primarily the physical and networking issues. We present the literature on channel modeling, coverage and capacity, radio resource management, localization, and energy efficiency in the physical layer part, and discuss the integrated space-air-ground architectures, routing, delay-tolerant/software-defined networks, and edge computing in the networking layer part. This paper also includes interesting simulation results which can provide practical guidelines about the deployment of ad hoc network architectures in emergency scenarios. Finally, we present several promising research directions, namely backhauling, cache-enabled and intelligent reflective surface-enabled networks, placement optimization of aerial base stations (ABSs), and the mobility-related aspects that come into play when deploying aerial networks, such as planning their trajectories and the consequent handovers (HOs).

show abstract

“…The upcoming generations of mobile networks tend broadly to keep up the growing requirements of future transmission [1]. This is, therefore, motivating the wireless research community to investigate new techniques for accommodating the key predicated scenarios of modern wireless networks like the bit-pipe communication [2], machine type communication [3], tactile Internet [4], and wireless regional area network [5].…”

Section: Introductionmentioning

confidence: 99%

Upgrading Physical Layer of Multi-Carrier OGFDM Waveform for Improving Wireless Channel Capacity of 5G Mobile Networks and Beyond

Kadhum

2020

Information

View full text Add to dashboard Cite

On the brink of sophisticated generations of mobile starting with the fifth-generation (5G) and moving on to the future mobile technologies, the necessity for developing the wireless telecommunications waveform is extremely required. The main reason beyond this is to support the future digital lifestyle that tends principally to maximize wireless channel capacity and number of connected users. In this paper, the upgraded design of the multi-carrier orthogonal generalized frequency division multiplexing (OGFDM) that aims to enlarge the number of mobile subscribers yet sustaining each one with a high transmission capacity is presented, explored, and evaluated. The expanded multi-carrier OGFDM can improve the performance of the future wireless network that targets equally the broad sharing operation (scalability) and elevated transmission rate. From a spectrum perspective, the upgraded OGFDM can manipulate the side effect of the increased number of network subscribers on the transmission bit-rate for each frequency subcarrier. This primarily can be achieved by utilizing the developed OGFDM features, like acceleration ability, filter orthogonality, interference avoidance, subcarrier scalability, and flexible bit loading. Consequently, the introduced OGFDM can supply lower latency, better BW efficiency, higher robustness, wider sharing, and more resilient bit loading than the current waveform. To highlight the main advantages of the proposed OGFDM, the system performance is compared with the initial design of the multicarrier OGFDM side by side with the 5G waveform generalized frequency division multiplexing (GFDM). The experimented results show that by moving from both the conventional OGFDM and GFDM with 4 GHz to the advanced OGFDM with 6 GHz, the gained channel capacity is improved. Because of the efficient use of Hilbert filters and improved rate of sampling acceleration, the upgraded system can gain about 3 dB and 1.5 dB increments in relative to the OGFDM and GFDM respectively. This, as a result, can maximize mainly the overall channel capacity of the enhanced OGFDM, which in turn can raise the bit-rate of each user in the mobile network. In addition, by employing the OGFDM with the dual oversampling, the achieved channel capacity in worst transmission condition is increased to around six and twelve times relative to the OGFDM and GFDM with the normal oversampling. Furthermore, applying the promoted OGFDM with the adaptive modulation comes up with maximizing the overall channel capacity up to around 1.66 dB and 3.32 dB compared to the initial OGFDM and GFDM respectively. A MATLAB simulation is applied to evaluate the transmission performance in terms of the channel capacity and the bit error rate (BER) in an electrical back-to-back wireless transmission system.

show abstract

Impact Study and Evaluation of Higher Modulation Schemes on Physical Layer of Upcoming Wireless Mobile Networks

Cited by 6 publications

References 17 publications

Distributed Physical-layer Network Coding MAC protocol

Distributed Physical-layer Network Coding MAC protocol

Post-Disaster Communications: Enabling Technologies, Architectures, and Open Challenges

Upgrading Physical Layer of Multi-Carrier OGFDM Waveform for Improving Wireless Channel Capacity of 5G Mobile Networks and Beyond

Contact Info

Product

Resources

About