Arne Simonsson

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Intercell interference coordination (ICIC) in orthogonal frequency division multiple access (OFDMA) networks in general and in the 3GPP Long Term Evolution system in particular has received much attention both from the academia and the standardization communities. Understanding the trade-offs associated with ICIC mechanisms is important, because it helps(More)
Uplink power control is a key radio resource management function. It is typically used to maximize the power of the desired received signals while limiting the generated interference. This paper presents the 3GPP long Term Evolution (LTE) power control mechanism, and compares its performance to two reference mechanisms. The LTE power control mechanism(More)
This paper proposes a low-complexity model for vertical antenna radiation patterns, e.g. for inclusion in systemlevel simulations. They can be seen as extensions to the horizontal radiation pattern model used in 3GPP simulation scenarios. The model is verified against and compared to predicted and measured data from real networks. The impact on system-level(More)
are mounted 8.5 m and 12 m above ground level, respectively, while for the mobile terminal the antenna is installed at a height 2.9 m. Abstract—This paper presents coverage and penetration loss measurements in an urban environment at 15 GHz to provide insight into the design and deployment of future 5G systems in higher frequency bands. The measurements are(More)
Avoiding delay jitter is essential to achieve high throughput for TCP. In particular, delay spikes can cause spurious timeouts. Such timeouts force TCP into slow-start, which may reduce congestion window sizes drastically. Consequently, there may not always be data available for transmission on bottleneck links. For HS-DSCH, jitter can occur due to varying(More)
Managing multiple services with controlled Quality of Service (QoS) is crucial to 3 generation cellular systems. This paper describes and evaluates a simple radio resource management scheme; service-based power setting, employed to accomplish this goal for the GSM/EDGE Radio Access Network (GERAN). Simulation results indicate that with proper power offsets(More)