NDLI: Null-space cognitive precoding for heterogeneous networks

Content Provider	IET Digital Library
Author	Castanheira, Daniel Silva, Adão Gameiro, Atílio
Abstract	Small-cells are considered as an effective solution to increase capacity and offload traffic from, the current macro-cell cellular system. Owing to the difficulty and costs involved in acquiring new spectrum licenses, small-cells are expected to coexist with their respective macro-cells, in the same spectrum. This leads to considerable interference between the two systems. Optimum performance, at the macro-cell, is achieved when the small-cell terminals transmit their information over the null-space of the macro-cell link. However, availability, at the small-cell terminals, of the macro-cell channel null-space information requires full-cooperation and thus a high overhead of information exchange. In this study, the cognitive precoding schemes are designed under a limited inter-system information exchange and the constraint that the performance of the macro-cell link is kept close to the case where no small-cell network does exist. Two techniques are considered: a two-bit quantisation precoded and a dual space-frequency coding precoded approach. It is demonstrated that the first achieves a performance close to the full cooperation approach recently proposed, but with very low information exchange requirements. For the second, it is show that both the systems are able to coexist without any inter-system cooperation and with a performance close to the non-coexistence scenario.
Starting Page	555
Ending Page	563
Page Count	9
ISSN	17518628
Volume Number	8
e-ISSN	17518636
Issue Number	Issue 5, Mar (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/8/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2013.0434
Journal	IET Communications
Publisher Date	2014-02-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bit Quantisation Precoding Cellular Radio Channel Capacity Channel Coding Code Cognitive Radio Cooperation Approach Cooperative Communication Dual Space-frequency Coding Precoded Approach Electromagnetic Compatibility Heterogeneous Network Information Exchange Overhead Information Transmission Interference Interference Suppression Legislation, Frequency Allocation And Spectrum Pollution Macro Cell Channel Null Space Information Macrocell Cellular System Macrocell Link Mobile Radio System Network Capacity Network Coding Null Space Cognitive Precoding Offload Traffic Precoding Quantisation (signal) Radio Link Radio Spectrum Management Small Cell Terminal Spectrum Licenses Telecommunication Traffic
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Interference cancellation in HetNet uplink with and without MU-CSIR: a subspace-based approach

Qualitative analysis for coverage probability and energy efficiency in cognitive-femtocell networks under macrocell infrastructure

Interference mitigation and capacity enhancement of cognitive radio networks using modified greedy algorithm/channel assignment and power allocation techniques

Robust resource allocation for heterogeneous wireless network: a worst-case optimisation

Downlink performance limitations of cellular systems with coordinated base stations and mismatched precoder

CRS interference cancellation algorithm for heterogeneous network

Analysis of traffic offload using multi-attribute decision making technique in heterogeneous shared networks

Primary user localisation and uplink resource allocation in orthogonal frequency division multiple access cognitive radio systems

Optimal power allocation for asymmetric analogue network coding in cognitive radio

Null-space cognitive precoding for heterogeneous networks

Similar Documents

Interference cancellation in HetNet uplink with and without MU-CSIR: a subspace-based approach

Qualitative analysis for coverage probability and energy efficiency in cognitive-femtocell networks under macrocell infrastructure

Interference mitigation and capacity enhancement of cognitive radio networks using modified greedy algorithm/channel assignment and power allocation techniques

Robust resource allocation for heterogeneous wireless network: a worst-case optimisation

Downlink performance limitations of cellular systems with coordinated base stations and mismatched precoder

CRS interference cancellation algorithm for heterogeneous network

Analysis of traffic offload using multi-attribute decision making technique in heterogeneous shared networks

Primary user localisation and uplink resource allocation in orthogonal frequency division multiple access cognitive radio systems

Optimal power allocation for asymmetric analogue network coding in cognitive radio

Null-space cognitive precoding for heterogeneous networks