Macrocell Protection Interference Alignment in Two-Tier Downlink Heterogeneous Networks
نویسندگان
چکیده
منابع مشابه
Downlink Interference Mitigation Scheme for Two-tier OFDMA Cellular Networks
In a two-tier cellular network, macrocells and femtocells coexist. Since femtocells use low transmission power and share network resources with macrocells, they are considered as one of the promising solutions to highly congested network environments. However, since femtocells are deployed in a selforganized manner without cell-planning, they cause severe downlink interference to macro users. T...
متن کاملInterference Alignment in Two-Tier Randomly Distributed Heterogeneous Wireless Networks Using Stochastic Geometry Approach
With the massive increase in wireless data traffic in recent years, multi-tier wireless networks have been deployed to provide much higher capacities and coverage. However, heterogeneity of wireless networks bring new challenges for interference analysis and coordination due to spatial randomly distributed transmitters. In this paper, we present a distancedependent interference alignment (IA) a...
متن کاملDynamic femtocell resource allocation for managing inter-tier interference in downlink of heterogeneous networks
This paper investigates the downlink resource allocation problem in Orthogonal Frequency Division Multiple Access (OFDMA) Heterogeneous Networks (HetNets) consisting of macrocells and femtocells sharing the same frequency band. The focus is to devise optimised policies for femtocells’ access to the shared spectrum, in terms of femtocell transmissions, in order to maximise femto users sum data r...
متن کاملRegionalized Interference Alignment in Two-Tiered Cognitive Heterogeneous Networks
—Interference alignment in cognitive networks is an efficient way to achieve the cognitive system throughput gain without degrading the throughout of the primary system. In this paper a novel interference management strategy is presented to use interference alignment in cognitive heterogeneous networks flexibly. Characteristics of interference distribution in twotiered networks are considered ...
متن کاملCognitive Interference Alignment for Heterogeneous Two-tiered Self-organizing Networks
In this contribution, we consider a heterogeneous two-tiered network where a tier of cognitive self-organizing small cells is deployed over the coverage area of a preexisting orthogonal frequency division multiple access (OFDMA) macro cell. Neither crossnor co-tier cooperation or communication is established, thus no joint signal processing techniques can be implemented by the macro and small b...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mobile Information Systems
سال: 2017
ISSN: 1574-017X,1875-905X
DOI: 10.1155/2017/7410546