We present a sector-based resource allocation scheme for broadband fixed wireless networks. For SIR requirements of about 12 to 14 dB, the scheme can deliver an effective reuse factor of one, while permitting a given spectrum to be re-used in every sector of every cell. The scheme also offers flexible sector planning, easy capacity growth, and addresses irregular cell layout and non-uniform tra...

In this paper, we investigate power control and resource allocation for long-term evolution (LTE) uplink. We develop an efficient way to improve system performance, especially for those users at the edge of a cell, by taking interference to and from adjacent cells into consideration. Simulation results show that the spectrum efficiency for edge users is improved by about 20% over the independen...

In recent years, several researchers have embraced fractional frequency (FF) reuse as a strategy for resolving the inter-cell and co-channel interferences of adjacent cells (ICI, CCI) number wireless networks grows. This technique is focused on cell division two parts, inner outer, which enables multiple bands to be assigned. The advantages can completely used in each zone, since there no distu...

We present a sector-based resource allocation scheme for broadband fixed wireless networks. For SIR requirements of about 12 to 14 dB, the scheme can deliver an effective reuse factor of one, while permitting a given spectrum to be re-used in every sector of every cell. The scheme also offers flexible sector planning, easy capacity growth, and addresses irregular cell layout and non-uniform tra...

To improve the spectrum efficiency in wireless communication, two techniques are commonly used: adaptive digital signal processing and resource allocation. The aim of both techniques is to reduce the interference level. In this paper we study the performance improvement of using jointly these techniques for closed loop multiuser MIMO systems. We propose a closed loop spatial multiuser schedulin...

the growing scarcity of fresh water is driving the implementation of wastewater treatment and water reuse on an increasingly large scale. various methods have been developed and used for water reuse from wastewater; however, the membrane distillation (md) process, as a promising separation technology, has recently gained more attention. the md process is a non-isothermal membrane-based separati...

Cognition means state and contextual awareness, reasoning and conclusion formulation, and a method by which application can be re-configured. Cognitive Radio (CR) is one such Intelligent Wireless Communication system that is built on Software Defined Radio which collects information from the surrounding environment and uses this learning to adapt itself to the variation in the input stimuli [7]...

Cognitive Network is a technique which is used to improve the spectrum utilization. Current network scenario is experiencing the huge spectrum scarcity problem due to the fixed assignment policy so in this method great amount of spectrum remain unused. To overcome this limitation the spectrum allocation must be in dynamic manner. In this paper the spectrum allocation is discussed thoroughly. In...

In recent years, the mobile data usage has grown by 70–200 percent per annum. More worryingly, the bursty nature of wireless data traffic makes traditional network planning for capacity obsolete. Amongst both operators and vendors alike, small cells (e.g., picocells, femtocells and relay nodes) have been considered as a promising solution to improve local capacity in traffic hotspots, thus reli...

Nowadays, It has been shown that spectrum scarcity increased due to tremendous growth of new players in wireless base system by the evolution of the radio communication. Resent survey found that there are many areas of the radio spectrum that are occupied by authorized user/primary user (PU), which are not fully utilized. Cognitive radios (CR) prove to next generation wireless communication sys...