4Reliable Energy‐Efficient Uplink Transmission Power Control Scheme in NAN
In the previous chapter, we proposed a self‐sustaining wireless neighborhood‐area network (NAN) design. In this chapter, we propose a hierarchical power control scheme for the uplink transmission targeting the real‐time data rate reliability and energy efficiency. A two‐level Stackelberg game is applied to the proposed scheme, and the Stackelberg equilibrium is derived, based on a linear receiver. The proposed power control scheme is demonstrated to achieve both data rate reliability and energy efficiency.
4.1 Background and Related Work
4.1.1 Motivations and Background
Our proposed NAN design in the previous chapter was based on fixed data rate requirements in the smart grid. In practice, the data rate requirement may not be that demanding, since the smart grid will be rolled out in phases. Therefore, a NAN does not need to operate at it full designed capacity in early phases. In our proposed wireless NAN design, the networks are enabled by Wi‐Fi and WiMAX. Normal data aggregate points (DAPs) are enabled with Wi‐Fi for internal communications in a NAN. Gateway DAPs are also enabled with WiMAX for bridging a NAN and the utility backbone network.
WiMAX is chosen for gateway DAPs because it may be deployed in in the unlicensed 5.8 GHz unlicensed spectrum. Avoiding licensing fees could significantly lower costs. However, for systems operating in unlicensed bands, the maximum effective isotropic radiated power (EIRP) ...