Heterogeneous networks assist in enhancing the data rates. In this context, heterogeneous networks comprising eNodeB, Femtocell and Wi-Fi Access Point (AP) operate conjointly to render higher data rates to the User Equipment (UE). Moreover, as Wi-Fi AP avails of mostly 2.4 GHz ISM band and does not use more of 5 GHz frequency band, Femtocell exploits this unused 5 GHz spectrum for its own data transmission. To be specific, Femtocell adopts both the licensed band and un-licensed bands to improve the capacity of UE. But, while transmitting data to UE, interferences created from one network (either eNodeB or Femtocell or Wi-Fi AP) to the users of other network are to be controlled. At the same time, capacity reaching to UE from multiple networks is optimized by allotting optimum powers and vital number of channels from multiple networks. Consecutively, all the aforementioned process is labelled as ‘HEN-BULB’ (HEterogeneous Networking in Both Unlicensed and Licensed Bands). Essentially, while resolving HEN-BULB, the distinctiveness of the proposed algorithm lies in evaluating the required number of channels in advance. Thereafter, optimal power allocation for these channels is accomplished by making use of the estimated lagrange multipliers. As a result, proposed algorithm unravels the HEN-BULB with lesser number of floating point operations in contrast to the generally used Iterative algorithms.

异构网络有助于提高数据速率。在这种情况下，包括 eNodeB、Femtocell 和 Wi-Fi 接入点 (AP) 的异构网络联合运行以向用户设备 (UE) 提供更高的数据速率。此外，由于 Wi-Fi AP 主要使用 2.4 GHz ISM 频段并且不会使用更多的 5 GHz 频段，因此 Femtocell 将这个未使用的 5 GHz 频谱用于自己的数据传输。具体来说，Femtocell同时采用授权频段和非授权频段来提高UE的容量。但是，在向 UE 传输数据时，需要控制从一个网络（eNodeB 或 Femtocell 或 Wi-Fi AP）对其他网络用户产生的干扰。同时，通过从多个网络分配最佳功率和重要数量的信道来优化从多个网络到达 UE 的容量。连续地，所有上述过程都被标记为“HEN-BULB”（非授权和授权频段中的异构网络）。本质上，在解决 HEN-BULB 的同时，所提出算法的独特之处在于预先评估所需的通道数。此后，通过使用估计的拉格朗日乘数来实现这些信道的最佳功率分配。因此，与通常使用的迭代算法相比，所提出的算法以较少数量的浮点运算来解开HEN-BULB。