If wireless medium is considered as the source for data communication in the Smart grid environment, what are the parameters needed to evaluate under the interference conditions if the network is working particularly under 2.4GHz ISM band?
If there are other radio's operating in 2.4 GHz then there is no way you can be immune from interference. It can only be minimized.
Hello Vikram,
Smart Grid is envisioned to be a wide area network that is typically spread over longer distances. Apart from interference as pointed out by someone, a major problem of using 2.4 Ghz is the shorter ranges compared to GSM, LTE, TV. This means that communications among more and more intermediate hops will be required to reach a desired distance. This in turn adds to queuing delay and congestion, over a mesh network that is designed over 2.4Ghz bands. But the good thing is that 2.4Ghz is unlicensed and therefore cheap.
Thank you Dr. Shameek. I have been doing work on building area networks. So indeed if we are opting for wireless networks for the smart meter, then what important parameters have to be considered in the 2.4GHz band to evaluate performance. I have studied in the literature, about WPAN, and NAN's can be deployed for smart metering based on IEEE 802.15.4.
Hello Vikram,
The word importance can mean different things and depends on your objective. Like in any optimization problem, certain parameters which you would like to maximize/minimize are the important parameters, while other parameters are not viewed as important since they are treated as constraints. I think the most natural important parameter will be delay. As you know, IEEE 802.15.4 offers around 10m-20m range which is very small. Hence, you would need more hops to reach the Utility WAN. You can always increase transmit power to increase range, but this will cause interference and noise and decrease the QoS. You also know that if smart meters participate in demand response programs (which is really the essence of a smarter grid), they you cannot afford to have large delays. If there is a large delay in the communication between smart meter and utility WAN, then this is no good, because a utility has to manage millions of meters. Energy expenditure could be yet another important parameter, and the constraint could be cost. As you know operating on 2.4 ghz is the cheapest.
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