Foundations of Mobile Radio Engineering

Yacoub, Michel Daoud

doi:10.1201/9780203755563

Cited by 214 publications

(134 citation statements)

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“…Assuming a square cellular grid, as in Figure 1, where R is the cell radius and &R [8] is the unit in the respective set of coordinates, the distance D between the centers of the cells is given by that some of the proposed patterns tessellate into staggered configurations with the closer interferers being either completed obstructed or obstructed for most the time with a LOS interferer appearing many blocks away. In our calculations, however, we shall consider the worst case condition.…”

Section: Microcellular Reuse Patternsmentioning

confidence: 99%

Novel reuse patterns for microcellular networks

Yacoub¹,

Toledo²,

Gomez³

et al.

ITS'98 Proceedings. SBT/IEEE International Telecommunications Symposium (Cat. No.98EX202)

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This paper proposes novel reuse patterns for microcellular network based on a square grid. An initial carrierto-interference ratio assessment for these patterns considers the mobiles positioned at the worst case condition and the system operating at a full load. Among the possible reuse patterns (1, 2, 4, 5, 8, 9, 10, 13, ... microcells per cluster) the performance analysis investigates systems with clusters of 5, 8, 9, and I O microcells. The results show a substantial difference in performance for the up and downlinks, with the former pelforming less satisfactorily than the latter and with this difference diminishing as the size of the cluster increases. Both the 10-and the 9-microcell clusters exhibit an outstanding pelformance and, if appropriately explored, a remarkable trade-off between capacip and interference may be encountered in the 5-microcell cluster.

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Section: Microcellular Reuse Patternsmentioning

confidence: 99%

Novel reuse patterns for microcellular networks

Yacoub¹,

Toledo²,

Gomez³

et al.

ITS'98 Proceedings. SBT/IEEE International Telecommunications Symposium (Cat. No.98EX202)

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“…Similar procedures were applied for the velocity of 60 / km h . In order to fulfill the Nyquist criterion the minimum sampling rate in which the envelope is acquired must satisfy / 4 s s L vT [9], where s L is the distance between two consecutive samples and s T is the sampling time. Since each section of envelope acquired by the spectrum analyzer has 401 samples and assuming S as the analyzer sweep time, then: …”

Section: B Measurement Techniquementioning

confidence: 99%

Field measurements of the level crossing rate in the nakagami mobile channel environment

Ribeiro

Conforti

SBMO/IEEE MTT-S International Conference on Microwave and Optoelectronics, 2005.

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Field trials at 836 MHz in a suburban area were carried out, using a spectrum analyzer as the acquisition apparatus. The empirical probability density function (PDF) and level crossing rate (LCR) statistics calculated from the recorded envelopes were then compared to the corresponding closed-form expressions for the Nakagami fading. Good fit between empirical and theoretical curves were found for most data set. Also, there seem to be an independence of the goodness of fit for second-order statistics (LCR) when compared to the accuracy of fit for first-order statistics (PDF).

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“…The handoffs that occur between cells that are connected to different switches consume much more network resources (therefore, are more costly) than the handoffs that occur between cells connected to the same switch. More detailed description of handoffs can be found in Yacoub [15]. Referring to Figure 1, suppose we knew that the frequency of handoffs between cells U and V was very high and that between V and X was not so high.…”

Section: Introductionmentioning

confidence: 97%

On optimal cell assignments in PCS networks

Hung

Song

Conference Proceedings of the IEEE International Performance, Computing, and Communications Conference (Cat. No.02CH37326)

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We address a problem of network design for personal communication services (PCS). The objective is to assign optimally cells to the switches in mobile as well as personal communications. Two types of costs are considered: the cost of hadoffs between cells and the cost of cabling (or tnmking) between a cell site and its associated switch. The problem is constrained by the call volume that each switch can handle. We adapt a powelful combinutorial search technique, called Scatter Search, to this optimization problem. We also develop a new optimization paradigm, called Bounded Scatter Search, based on limited discrepancy search. Empirical results show promising performance with quality improvement.

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Foundations of Mobile Radio Engineering

Cited by 214 publications

References 0 publications

Novel reuse patterns for microcellular networks

Novel reuse patterns for microcellular networks

Field measurements of the level crossing rate in the nakagami mobile channel environment

On optimal cell assignments in PCS networks

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