Intracell Frequency Band Exiling for Green Wireless Networks: Implementation, Performance Metrics, and Use Cases

Ozyurt, Ahmet Burak; Başaran, Mehmet; Ardanuc, Mine; Durak–Ata, Lütfiye; Yanıkömeroğlu, Halim

doi:10.1109/mvt.2021.3057355

Cited by 6 publications

(4 citation statements)

References 13 publications

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“…The modulated OFDM signal has a length of

N_{s} = N + N_{p}

where reference sequence length is

N_{p} = N_{p_{1}} + N_{p_{2}} + \dots + N_{p_{λ + 1}}

while OFDM data length is

N = \sum_{i = 1}^{λ} N_{i}

. On the other hand, energy efficiency can be considered when multiple users are communicating in the heterogeneous cellular network regions 33–35 …”

Section: Smbm‐ofdm Systemmentioning

confidence: 99%

“…On the other hand, energy efficiency can be considered when multiple users are communicating in the heterogeneous cellular network regions. [33][34][35] Thanks to MBM, the SMBM-OFDM signal is composed of N map ¼ 2 N rf blocks representing the channel state (i.e., constitutes the MAP) where every block is composed of N t blocks in which the OFDM signal is placed according to…”

Section: Transmitter Modelmentioning

confidence: 99%

See 1 more Smart Citation

High mobility enabled spatial and media‐based modulated orthogonal frequency division multiplexing systems for beyond 5G wireless communications

Başaran

Başar

Çırpan

2022

Int J Communication

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This paper introduces the concept of spatial and media-based modulated (SMBM) orthogonal frequency division multiplexing (OFDM) as a potential candidate for highly mobile next generation beyond 5G (B5G) wireless communications. The proposed SMBM-OFDM technique utilizes not only the transmit antenna and channel state indices but also OFDM subcarriers to improve the system performance under high mobility. In addition, this study sheds light on challenging fast time-varying channel estimation problem of MBM-based systems by using the linear minimum mean square error (LMMSE) approach due to its optimality to investigate the achievable system performance with the aid of basis expansion modeling. The minimum lower bound on the channel estimation error (Bayesian Cramer-Rao bound) is derived theoretically and shown to be attainable by the considered LMMSE estimator. Moreover, symbol detection performance is provided for different modulation types and higher mobile velocities. Simulation results demonstrate that SMBM-OFDM system under high mobility is able to provide around 12-dB performance gains in terms of both channel estimation and symbol detection error compared to conventional spatial modulation (SM)-OFDM systems without MBM. The presented framework is important due to addressing the high mobility support of SMBM-OFDM systems for B5G wireless communications in terms of achievable channel estimation and data detection performance.

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“…The modulated OFDM signal has a length of

N_{s} = N + N_{p}

where reference sequence length is

N_{p} = N_{p_{1}} + N_{p_{2}} + \dots + N_{p_{λ + 1}}

while OFDM data length is

N = \sum_{i = 1}^{λ} N_{i}

. On the other hand, energy efficiency can be considered when multiple users are communicating in the heterogeneous cellular network regions 33–35 …”

Section: Smbm‐ofdm Systemmentioning

confidence: 99%

Section: Transmitter Modelmentioning

confidence: 99%

High mobility enabled spatial and media‐based modulated orthogonal frequency division multiplexing systems for beyond 5G wireless communications

Başaran

Başar

Çırpan

2022

Int J Communication

Self Cite

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“…From the very beginning of wireless communication, two main metrics to measure performance are energy efficiency (EE) and spectral efficiency (SE) [4]. With the enormous increase in communication devices, EE, the transmitted data rate per power consumption, is widely considered in green communication [4]. SE is defined as the transmitted data rate per bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Energy and Spectral Efficiency of Multi-Tier LiFi Networks

Ozyurt

Bian²,

Haas

et al. 2023

2023 IEEE Wireless Communications and Networking Conference (WCNC)

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In this paper, multi-tier LiFi networks are studied in terms of energy efficiency (EE) and spectral efficiency (SE), which are crucial metrics for LiFi system design. We derived a closed-form expression of the user association probability for different tiers using stochastic geometry based Poisson Voronoi Tessellation (PVT) LiFi network. The performance metrics of the network, EE and SE, are analyzed in terms of different parameters such as transmit power and Lambertian index. Performance evaluations and numerical results show that multi-tier LiFi networks have an optimum transmit power in which EE is maximized. Besides, increasing the transmit power does not increase SE after passing a threshold point. The resulting trade-off between EE and SE is presented.

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“…If we consider that approximately 80 percent of wireless data traffic originates or terminates within a building, new global research should focus on this critical indoor wireless gap [1]. 2G and 3G connectivity still enable the majority of internet of things (IoT) applications, but the number of short-range IoT connections will increase by 13 percent annually and reach close to 20 million connections at the end of the 2025 [2], [3]. Satisfying these demands is highly desirable for future wireless technologies.…”

Section: Introductionmentioning

confidence: 99%

Proceedings of the Workshop on Light Up the IoT

Özyurt¹,

Tinnirello²,

Popoola³

2020

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This paper presents a two-tier LiFi network and analyses the cross-tier handover rate between the primary and secondary cells. Based on the semiangle at half illuminance of the primary and secondary cells, we propose coverage model for the secondary cells. Using stochastic geometry, closed-form expressions are derived for the cross-tier handover rate and sojourn time in terms of the received optical signal intensity, time-to-trigger and user mobility. The analytical models are validated with simulation results.

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Intracell Frequency Band Exiling for Green Wireless Networks: Implementation, Performance Metrics, and Use Cases

Cited by 6 publications

References 13 publications

High mobility enabled spatial and media‐based modulated orthogonal frequency division multiplexing systems for beyond 5G wireless communications

High mobility enabled spatial and media‐based modulated orthogonal frequency division multiplexing systems for beyond 5G wireless communications

Energy and Spectral Efficiency of Multi-Tier LiFi Networks

Proceedings of the Workshop on Light Up the IoT

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