LTE 4G cellular networks are gradually being adopted by all major operators in the world and are expected to rule the cellular landscape at least for the current decade. They will also form the starting point for further progress beyond the current generation of mobile cellular networks to chalk a path towards fifth generation mobile networks. Several new approaches and technologies are being c...

Estimating the position of mobile terminals is an important problem for cellular networks. A low cost method of locating the mobile terminal is to use measurements of the radio path loss. The distribution of radio path loss is, unfortunately, a non-linear function of the mobile terminal location. The non-linearity results from large obstacles to radio-wave propagation such as buildings or hills...

In this paper, we present ICEPT, a new mobile radio network planning tool that is based on an integrated design approach. The new approach starts with the analysis of the spatial distribution of the expected teletraac within the service area of the cellular system. Employing this principle, the ICEPT tool considers concurrently the four major design areas of cellular networks: Radio Transmissio...

The Mobility in wireless cellular communication systems is its backbone so as to enhance the quality of service and maintain the continuous service. Handoff is an important task in maintaining the continuity of call in cellular systems and its failure can result in ongoing call termination. In cellular mobile networks, the coverage region is divided into smaller cells in order to achieve high s...

Ray-tracing and UTD (Uniform Theory of Diffraction) techniques are already widely applied to site-specific radio propagation modeling for wireless applications. This paper briefly presents the software tool Radio-Tracer that uses efficient algorithms to calculate dynamically the exact visibility graph of an environment taking into account the position of both transmitter and receivers and the m...

Commencing with the brief history of mobile communications and the portrayal of the concept of wireless multimedia communications, the implications of Shannon's theorems regarding joint source and channel coding are addressed. Following a brief introduction to speech, video and graphical source coding as well as the cellular concept, a short description of the mobile propagation channel is o er...

As the cellular industry has evolved from first-generation to third-generation cellular systems, system architects have refined the role of nodes in the network. In hindsight, one can say that the architects of firstgeneration cellular systems, such as AMPS and NMT, had quite modest expectations regarding the scope of future traffic volumes. Accordingly, a simple architecture could meet these m...

This paper provides detailed analysis and simulation for explol'ing the impact of out-of-band emissions (OOBE) of adjacent wireless services to the Sirius XM digital satellite radio service. Based on an extensive analysis of interference from vehicles with mobile cellular users in realistic roadway conditions, we propose proper methods for determining out of band emission spectral masks that sh...

|A Dynamic Programming formulation is used to obtain an optimal strategy for the handoo problem in cellular radio systems. The formulation includes the modeling of the underlying randomness in received signal strengths as well as the movements of the mobile. The cost function is designed such that there is a cost associated with switching and a reward for improving the quality of the call. The ...

one of the limitations of orthogonal frequency division multiplexing (ofdm) in many applications is its sensitivity to frequency shifts, errors normally referred to as carrier frequency offset (cfo). although, this small offset is negligible in conventional single carrier communication systems, it is a severe problem in the ofdm systems. because, the carriers in ofdm are inherently closely spac...