Yazar "Elkourdi, Mohamed H." seçeneğine göre listele

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    Waveform design for 5G and beyond
    (Wiley, 2018) Demir, Ali Fatih; Elkourdi, Mohamed H.; İbrahim, Mostafa N.; Arslan, Hüseyin
    5G is envisioned to improve major key performance indicators (KPIs), such as peak data rate, spectral efficiency, power consumption, complexity, connection density, latency, and mobility. This chapter aims to provide a complete picture of the ongoing 5G waveform discussions and overviews the major candidates. It provides a brief description of the waveform and reveals the 5G use cases and waveform design requirements. The chapter presents the main features of cyclic prefix-orthogonal frequency-division multiplexing (CP-OFDM) that is deployed in 4G LTE systems. CP-OFDM is the baseline of the 5G waveform discussions since the performance of a new waveform is usually compared with it. The chapter examines the essential characteristics of the major waveform candidates along with the related advantages and disadvantages. It summarizes and compares the key features of different waveforms.
  • Küçük Resim
    Öğe
    Waveform design principles for 5G and beyond
    (Institute of Electrical and Electronics Engineers Inc., 2016) Elkourdi, Mohamed H.; Peköz, Berker; Güvenkaya, Ertu?rul; Arslan, Hüseyin
    Various emerging applications in future wireless networks require rethinking the access techniques not only from the capacity perspective but also satisfying a wide variety of requirements under the same framework. Traditional Orthogonal Frequency Division Multiplexing (OFDM)-based schemes still suffer from some limitations that stand in front of their existence in future technologies. The main goal of this study is to pave the way towards rethinking the waveform design by providing the main components of a wireless communication system. The concept of the multidimensional lattice is introduced, exploiting the angular dimension that opens a new horizon in research for 5G technology and beyond. The study proposes a new way of waveform design procedure that considers the multidimensional grid, which is essential for exploiting the opportunities in spatial domain effectively. In addition, the waveform design criteria for various applications and frequency bands are presented.