INTEGRATING THE ULTRA-HIGH CAPACITY MILLIMETER WAVE (MMWAVE) BAND INTO THE EXISTING CELLULAR NETWORK IS ONE OF THE MAIN CHALLENGES TOWARDS A UNIFIED MULTI-GBPS 5G NETWORK. IN THIS PAPER, A NOVEL HIERARCHICAL MULTI-BAND HETEROGENEOUS NETWORK (HETNET) IS PROPOSED TO EFFICIENTLY OVERLAY MMWAVE SMALL CELLS (SCS) OVER THE LEGACY LTE ENB. BY WHICH, A MEDIUM COVERAGE BAND IS USED TO PRECISELY CONTROL ... Read more

Recently, the unlicensed 60 GHz millimeter wave (mmWave) band has drawn attention as a promising solution for enabling future multi-Gbps wireless local area networks (WLANs). IEEE 802.11 ad (WiGig) standard was developed for 60 GHz WLANs, where directional transmission is utilized to compensate severe propagation losses in mmWave bands. Due to mmWave signals propagation limitations and its high vulnerability to ... Read more

This paper presents a comparative study on millimeter wave (mmWave) location-based analog beamforming (BF) techniques based on channel estimation. Localization and compressive sensing (CS) effectively reduces mmWave BF complexity and enhance the performance of mmWave system comparable to the conventional mmWave analog BF techniques. BF techniques based on channel state information (CSI) has high complexity in constructing mmWave channel sensing ... Read more

Millimeter wave (mmWave) communication is considered as the most promising solution for future 5G cellular networks. However, it suffers from a severe propagation loss causing dramatic link quality degradation and limiting its coverage area. Antenna beamforming appears to be a suitable solution to overcome this problem and provides longer transmission outdoor mmWave links. Accordingly, highly complicated conventional beamforming training (BT) ... Read more

MIMO-Constant Envelop Modulation (CEM) is a very power and complexity efficient system, which is introduced as alternative candidate to the currently used MIMO-Orthogonal Frequency Division Multiplexing (OFDM). CEM system enables to use high efficient nonlinear power amplifier on the transmitter side and 1 bit (low resolution) analog to digital converter (ADC) on the receiver side. Due to adopting the low ... Read more

A modified Orthogonal Frequency Division Multiplexing (OFDM) system for robust progressive image transmission is proposed in this paper. A joint source-channel coder (JSCC) is employed in the modified OFDM system. The set partitioning hierarchical trees (SPIHT) used as source code, and The Low-Density Parity-Check (LDPC) used as a channel coder. The SPIHT coder is modified to generate four different groups ... Read more

A joint source-channel coding scheme (JSCC) for robust image transmission over wireless communication channel is proposed in this paper. In the proposed scheme, the set partitioning hierarchical trees (SPIHT) coder is modified to generate four different groups of bit stream relative to its significances. Moreover, an optimal unequal error protection (UEP) is suggested for data groups based on the channel ... Read more

Integration of the promising Millimeter wave (mmWave) technology into the existing cellular network is one of the main challenges towards a unified multi-Gbps 5G cellular network. However, due to its short transmission range accompanied with the inevitable use of highly directional communication, directly controlling the access of mmWave small cells (SCs) using the legacy LTE eNB using conventional LTE/WLANs interworking ... Read more