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A comprehensive framework for design of hexagonal cellular network system in terms of spatial spectral and energy efficiencies is presented. The communication environment in the system is assumed to be Nakagami-m fading coupled with simplified path loss model and co-channel interference. Three base station antenna configurations namely, omni, 120° and 60° are considered. Closed-form expressions for...
Multi-h CPFSK mapper in an OFDM system can offer significant gain in both PAPR and bit error rate probability. The OFDM PAPR problem is addressed and investigated using SLM reduction technique. Next, an OFDM system with a multi-h CPFSK mapper is considered and its performance is evaluated in terms of the upper and lower bounds on bit error rate probability, and a closed form expression is obtained...
Due to the increase of energy consumption in wireless systems, energy-efficient cellular planning concept has become an important concern in designing cellular networks. In this paper, energy efficiency (EE) and spectral efficiency (SE) analysis for single and multi-cell cellular systems are presented and investigated. The efficiency analysis is studied under the influence of Nakagami-m multi-path...
Millimeter wave (mmWave) spectrum bands have been proposed for commercial wireless communications to relieve the spectrum crunch in the microwave band. The mmWave bands are being vigorously pursued for multiple gigabit data transmission. In this paper, channel models for line-of-sight (LOS) and non-line-ofsight (NLOS) links for specific mmWave frequency bands are presented and then used in the evaluation...
Bandwidth and power are the major radio resources of a wireless communication system. Designing an efficient wireless communication system requires trade-off between these resources. In this context, definitions of radio resource efficiencies are given in terms of bandwidth efficiency, bit/s/Hz, and power efficiency, bit/Thermal Noise Energy Unit, for an arbitrary communication system. These efficiencies...
Energy efficiency (EE) and spectral efficiency (SE) have become the key performance indicators for wireless communication systems. In this paper, EE and SE, efficiency metrics, of a digital communication system with M-QAM modulation technique are introduced. The upper bounds on the efficiency metrics over generalized-K fading channel are derived in closed form. These efficiency metrics are analyzed...
In recent years, achieving world-wide multimedia wireless services has received wide-spread attention and is the most desired objective of service providers of telecommunication networks. Thus, a significant amount of research efforts is devoted to broaden the wireless services over the globe. In this context, satellite component plays a pivotal role in extending and enhancing the existing Universal...
Closed-form bit error probability performance bounds for Continuous Phase Frequency Shift Keying (CPFSK) signalling over Rayleigh, Nakagami-m and Generalized-K (KG) fading channels are derived. These bounds are illustrated as a function of energy per bit to noise ratio, Eb/No, channel fading parameters, observation length, n, of the receiver, and modulation index, h. Multiple-bit-observation receiver...
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