Concert venues are extreme instances of traffic hotspots. Currently in concert venue settings, most operators use cellular solutions for voice and Wi-Fi for data. While this may be adequate for now, forecasts of exponential growth in user traffic (especially real-time video), this type of solution will not be sufficient in the future since Wi-Fi cannot provide Quality of Service (QoS) and the conventional cellular network will not have enough capacity. Let's consider a concert venue (e.g. Stadium) with a population capacity of 20000 to 90000. It's expected that people will be using smart devices with bandwidth-intensive applications such as mobile video. Hence, the forecast determines the traffic load will increase exponentially in the coming months. As a wireless operator, provide your recommendation to handle and maintain adequate QoS. Answer the following questions to provide the recommendations in a structured manner. [Source: https://www.fujitsu.com/ca/en/Images/4G-Femtocell-for-Football-Stadiums.pdf a) Shed light on interference issues that could arise from 4G LTE cellular and HetNet based network solutions. Explain how you would avoid interference. Justify your answers. (10 Marks) b) Do you think using Wireless Personal Area Networks (WPANS) such as Piconet and Scatternet could significantly benefit your proposed solution? Give reasons. c) Explain how Piconet and Scatternet can be implemented. (5 Marks) (10 Marks) Page 5 of 9