| |
| Conventional design of wireless networks mainly focuses on system capacity and spectral efficiency（SE）. As green radio (GR) becomes an inevitable trend, energy-efficient design is becoming more and more important. For SE oriented design, it can improve the system rate as much as possible, but energy efficiency (EE) may be not desirable. Similarly, for EE oriented design, it can save the energy mostly, but the system rate may be low. It can be proved that Pareto Optimality between SE and EE exists. In this paper, a new design about the tradeoff between SE and EE is addressed on the basis of Nash Bargaining to improve the system's comprehensive performance. With this design, we can not only improve the transmission rate but also save the energy. We first set up a general EE-SE tradeoff framework, then demonstrate the new objective function is strictly quasi-concave and get the unique and optimal Nash Bargaining Solutions (NBS). |
|
| Keywords:wireless communication; resource allocation; green radio (GR); Nash Bargaining |
|
