Results 21 to 30 of about 379,902 (266)
Downlink Interference Alignment [PDF]
We develop an interference alignment (IA) technique for a downlink cellular system. In the uplink, IA schemes need channel-state-information exchange across base-stations of different cells, but our downlink IA technique requires feedback only within a cell.
Suh, C Suh, Changho +2 more
openaire +4 more sources
Asynchronous interference alignment [PDF]
A constant three-user interference channel wherein users are not symbol synchronous is considered. A novel practical interference alignment scheme for this channel is proposed wherein aligning interfering signals at each receiver is performed with the help of asynchronous delays which inherently exist among the received signals at each receiver node ...
Mehdi Torbatian, Mohamed Oussama Damen
openaire +1 more source
Asynchronous Interference Alignment [PDF]
A constant K-user interference channel in which the users are not symbol-synchronous is considered. It is shown that the asynchronism among the users facilitates aligning interfering signals at each receiver node while it does not affect the total number of degrees of freedom (DoF) of the channel. To achieve the total K/2 DoF of the channel when single
Torbatian, Mehdi +2 more
openaire +2 more sources
The Practical Challenges of Interference Alignment [PDF]
Interference alignment (IA) is a revolutionary wireless transmission strategy that reduces the impact of interference. The idea of interference alignment is to coordinate multiple transmitters so that their mutual interference aligns at the receivers ...
Ayach, Omar El +2 more
core +1 more source
Interference Alignment Using Reaction in Molecular Interference Channels
Co-channel interference (CCI) is a performance limiting factor in molecular communication (MC) systems with shared medium. Interference alignment (IA) is a promising scheme to mitigate CCI in traditional communication systems. Due to the signal-dependent noise in MC systems, the traditional IA schemes are less useful in MC systems.
Maryam Farahnak-Ghazani +2 more
openaire +3 more sources
Distributed interference alignment iterative algorithms in symmetric wireless network
Interference alignment is a novel interference alignment way,which is widely noted all of the world.Interference alignment overlaps interference in the same signal space at receiving terminal by precoding so as to thoroughly eliminate the influence of ...
YANG Jingwen, LI Li, QIU Hao
doaj +1 more source
On optimal ergodic interference alignment [PDF]
The original ergodic interference alignment scheme proposed by Nazer et al. requires symmetric channel phase distribution. In this paper, we investigate a new ergodic interference alignment scheme which can achieve one half interference-free degree of freedom (DoF) for arbitrary phase distribution. Even for symmetric phase distributions, the new scheme
Geng, Chunhua, Jafar, Syed Ali
openaire +2 more sources
Designing Precoding and Receive Matrices for Interference Alignment in MIMO Interference Channels [PDF]
Interference is a key bottleneck in wireless communication systems. Interference alignment is a management technique that align interference from other transmitters in the least possibly dimension subspace at each receiver and provides the remaining ...
Fazel, Muhammad Sadegh +3 more
core +1 more source
Partial Interference Alignment for Heterogeneous Cellular Networks
The deployment of small cell base stations (BSs) can efficiently boost the network capacity. Cross-tier interference management is critical for the performance enhancement in such heterogeneous networks.
Longwei Wang, Qilian Liang
doaj +1 more source
Blind Interference Alignment in Two-Cell Z Interference MIMO Channel
This paper proposes a blind interference alignment (BIA) scheme in two-cell Z interference multiple-input multiple-output channel where the cell edge user equipment (UE) of the first cell is interfered by the base station of the second cell during ...
Xiao Chen +6 more
doaj +1 more source

