Capacity and interference statistics of highways W-CDMA cigar-shaped microcells (uplink analysis)

Ramón

Ariet

2006

The capacity and the interference statistics (mean and variance) of the sectors of a Cigar-, Tee-, and Cross-shaped WCDMA microcells are studied. Models of 5, 7, and 9 microcells are used to analyze the uplink capacity of the cigar-, Tee-, and cross-shaped W-CDMA microcell, respectively. The capacity and the interference statistics of the microcell are studied for different sector range and antenna side lobe levels. It is shown that the highest sector capacity is obtained when the microcell is cigar-shaped. For a cross-shaped microcell, the sector capacity is the lowest. Also it is shown that the uplink sector capacity will be very high if synchronous WCDMA is used in the uplink. To get the quasi maximum capacity, the sector range should be (0.6 -1) km and the side lobe level of the directive antenna used in each sector should be −15 dBc or lower.

Section: Propagation Modelmentioning

confidence: 99%

“…Ahmed et al studied the capacity and statistics of the cigar-shaped microcells with out giving the intracellular interference variance assuming perfect power control [4]. Sector capacity for only the voice service has been shown.…”

Section: Introductionmentioning

confidence: 98%

WCDMA Uplink Capacity and Interference Statistics of Highways Shaped Microcells with Imperfect Power Control and Finite Transmitted Power

Ramón

Ariet

2006

“…Hashem et al studied the capacity and the interference statistics for hexagonal macrocells for a propagation exponent of 4.0 [4]. In [5], the capacity, the mean and variance statistics of interference of cigar-shaped microcells for highways in rural zones using wide-band code-division multiple access (WCDMA) have been studied. A general propagation exponent using a two-slope propagation model and log-normal shadowing was used.…”

Section: Introductionmentioning

confidence: 99%

W-CDMA Uplink Practical Capacity and Interference Statistics of Rural Highways Cigar-Shaped Microcells with Imperfect Power Control and Finite Transmitted Power

Ramón

Ariet

2006

The capacity and the interference statistics of the sectors of the cigar-shaped W-CDMA microcell are studied. A model of 5 microcells is used to analyze the uplink. The microcells are assumed to exist in rural zones. The capacity and the interference statistics of the microcell are studied for different sector range, different antenna side lobe levels, different values of the break point distance, different values of the propagation parameter s 2 and different standard deviation of the power control error.

“…Nothing has been mentioned about the power level transmitted signal. In [8], Taha-Ahmed et al studied the capacity and statistics of the cigar-shaped highways microcells without giving the intracellular interference variance assuming perfect power control and infinite transmitted power. In [9], the WCDMA uplink practical capacity and interference statistics of rural highways cigar-shaped microcells has been given assuming imperfect power control and finite transmitted power where only one service at a given time has been considered.…”

Section: Introductionmentioning

confidence: 99%

Uplink Multi-service Capacity and Interference Statistics of City Streets WCDMA Cross-shaped Microcells with Imperfect Power Control and Finite Transmitted Power

2007

The multi-service (combination of more than one service) capacity and interference statistics (mean and variance) of the sectors of the street cross-shaped Wide Band Code Division Access (WCDMA) microcell are studied. A model of 21 cross-shaped microcells is used to analyze the uplink. The two slope propagation model is used to analyze the uplink. The capacity and interference statistics of the sectors are studied for different sector ranges, side lobe levels and power control (PC) standard deviation errors. It is noticed that, increasing the sector range will increase the sector capacity, reducing the side lobe level will also increase the sector capacity. Also it is noticed that, increasing the propagation exponent s 2 will increase the sector capacity, reducing the standard deviations of the shadowing parameters σ 1 and σ 2 will increase the sector capacity and that reducing the power control standard deviation error σ c will increase the sector capacity.