Green Communications and Energy Efficient Computing

The consumed power is a vital factor in the field of communication where it presents the point of tradeoff between the high performance and the cost. Further, the effect of this point extends to the environment. In fact, the behavior of applications kinds is going to support the high data rate which means more power consumption related to the increment of transmitted bits density such as the multimedia applications (gaming, video conferencing and electronics learning). On the other hand, the resources of communication fields are limited. Therefore, it is necessary to manage the resources of the system efficiently from the power consuming point of view. The green communication is the trend that deals with this issue and seeks to reduce the exhausted power as minimum as possible where it can be defined as the concept that addressing the exploration of sustainability as terms of condition of environmental, energy efficiency and the communication purposes. In general, the green communication is divided into two main parts: the hardware side which interests with manufactured techniques to reduce the power consumption, and the side of algorithms methods to manage the power efficiently. One of the fifth mobile generation methods is coordination of multipoint that is used to enhance the performance of the systems from traffic and consumed power points of view. This work submits the principals of coordination of multi sector of a base station in a cell to reduce the consumed power of the system by improve the link of the channel in case of the cell of IEEE 802.16e. In other words, the number of transmitted bursts for same information will be decreased related to employ the higher scheme of modulation rather than the robust modulation type. Consequently, the same information will be sent successfully but in a fewer bursts and lower power consumption. The results indicated that, the coordination among sectors submitting better performance related to exploit the green communication as a term of traffic. It is worth to mention that, the supposed model of IEEE 802.16e cell is simulated using opnet modeler and it is adopted the appropriate assumptions to implement the model successfully.