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Soft capacity analysis of TDMA systems with slow-frequency hopping and multiple-beam smart antennas

M.H. Ahmed, S.A. Mahmoud
2002 IEEE Transactions on Vehicular Technology  
A novel call admission control algorithm is proposed to enhance the system capacity without degrading the signal quality.  ...  Smart antenna is considered as one of the most effective means for enhancing wireless system capacity.  ...  Also, a novel admission control algorithm is proposed to enhance the system capacity without degrading the signal quality. The rest of the paper is organized as follows.  ... 
doi:10.1109/tvt.2002.1015317 fatcat:oc3cc5awtzfwxdlbrr76dfcxri

The impact of space division multiplexing on resource allocation: a unified treatment of TDMA, OFDMA and CDMA

I. Koutsopoulos, L. Tassiulas
2008 IEEE Transactions on Communications  
We study the class of greedy algorithms that rely on criteria such as induced or received interference and signal-to-interference ratio (SIR), and a class of SIR balancing algorithms.  ...  In this paper, we attempt to capture the impact of SDMA on access layer channel allocation, reflected on channel reuse.  ...  The authors wish to thank the anonymous reviewers for their comments that improved the presentation of the paper.  ... 
doi:10.1109/tcomm.2008.050102 fatcat:k2yb2uei4vannne4ghdblw4d4u

Distributed dynamic channel assignment in TDMA mobile communication systems

A. Lozano, D.C. Cox
2002 IEEE Transactions on Vehicular Technology  
Finally, we evaluate the degradation associated with the use of estimates of local-mean signal and interference levels-obtained by averaging instantaneous measurements-instead of the actual local-mean  ...  In particular, the impact of user motion on the performance of DCA systems has not received enough attention.  ...  Reuse distances are still fixed a priori. Interference-adaptive algorithms, on the other hand, collect signal and interference measurements that relate to the position of users.  ... 
doi:10.1109/tvt.2002.802969 fatcat:4bihk4rwufejxgq6rr76x4mtye

A Radio Resource Management Concept for "Bunched" Personal Communication Systems [chapter]

Miguel Berg, Stefan Pettersson, Jens Zander
1998 Multiaccess, Mobility and Teletraffic  
A lot of research has therefore been performed regarding adaptive channel allocation, where a channel can be used anywhere as long as the signal-to-interference ratio (SIR) is acceptable.  ...  The traditional way of increasing capacity in a wireless communication system has been cell splitting and fixed channel-allocation based on prediction tools.  ...  The interference is estimated from the measured SIR and signal strength of the serving cell.  ... 
doi:10.1007/978-1-4615-5437-0_21 fatcat:m6fatlmeb5bwllbh25ryt6k7pq

A hybrid TIM-NOMA scheme for the Broadcast Channel

V. Kalokidou, O. Johnson, R. Piechocki
2015 EAI Endorsed Transactions on Wireless Spectrum  
Research on Blind Interference Alignment and Topological Interference Management (TIM) has shown that optimal Degrees of Freedom can be achieved, in the absence of Channel State Information at the transmitters  ...  By superimposing users in the power domain, we introduce a two-stage decoding process, managing "inter-group" interference based on the TIM principles, and "intra-group" interference based on Successful  ...  Summary Overall, this paper introduces a novel hybrid scheme that can be employed in the MIMO BC of a cell, with users divided into groups.  ... 
doi:10.4108/ws.1.3.e4 fatcat:gwx3pz4p5vfi5evq5axkxx2gvm

Angle Diversity for an Indoor Cellular Visible Light Communication System

Zhe Chen, Nikola Serafimovski, Harald Haas
2014 2014 IEEE 79th Vehicular Technology Conference (VTC Spring)  
ACKNOWLEDGEMENT We gratefully acknowledge support by the School of Engineering and the Institute for Digital Communications (ID-COM) at the University of Edinburgh for providing a scholarship for this  ...  work which is aligned to the Engineering and Physical Sciences Research Council (EPSRC) project EP/K00042X/1.  ...  Results show that this method can achieve better cell edge signal-to-interference-plus-noise ratio (SINR) and improve the system throughput.  ... 
doi:10.1109/vtcspring.2014.7022832 dblp:conf/vtc/ChenSH14 fatcat:kknzhlz3mbhcloe7f7epbl5dti

Hybrid Automatic-Repeat-reQuest Systems for Cooperative Wireless Communications

Hoang Anh Ngo, Lajos Hanzo
2014 IEEE Communications Surveys and Tutorials  
For a given reference cell associated with colour A, all other cells marked A are full-reuse cells, relying on the same set of frequencies.  ...  For the full-reuse structure, an active user in the reference cell will experience interference from an active user in the reuse cell, during one of each sequence of N c hops, when they happen to use the  ... 
doi:10.1109/surv.2013.071913.00073 fatcat:ct2gqy36i5fuzbnnarvk3j6jiq

Interference-Aware Real-Time Flow Scheduling for Wireless Sensor Networks

Octav Chipara, Chengjie Wu, Chenyang Lu, William Griswold
2011 2011 23rd Euromicro Conference on Real-Time Systems  
In contrast to existing transmission scheduling algorithms that ignore interference between transmissions or prevent spatial reuse within the same channel, RFS supports spatial reuse through a novel interference-aware  ...  With the emergence of wireless sensor networks, an enabling communication technology for distributed real-time systems, we face the critical challenge of meeting the end-to-end deadlines of real-time flows  ...  Implicit EDF divides a network into cells operating on different frequencies to ensure that transmissions occurring in different cells do not conflict.  ... 
doi:10.1109/ecrts.2011.15 dblp:conf/ecrts/ChiparaWLG11 fatcat:xwailmuy4zhjtje6h2aqke4byi

Resource management in power-controlled cellular wireless systems

Mingbo Xiao, Ness B. Shroff, Edwin K. P. Chong
2001 Wireless Communications and Mobile Computing  
The efficient management of wireless resource is essential to the success of wireless systems.  ...  Considering the unique features of multimedia traffic to be supported in future wireless systems, we also review power and rate control schemes proposed for wireless data, and present a framework for utility-based  ...  95), and a combination of TDMA and slow frequency-hopping (GSM).  ... 
doi:10.1002/wcm.6 fatcat:npwqmsh3qrfc7lj277elmrb2e4

Joint Interference Management in Ultra-Dense Small Cell Networks: A Multi-Domain Coordination Perspective

Jia Xiao, Chungang Yang, Alagan Anpalagan, Qiang Ni, Mohsen Guizani
2018 IEEE Transactions on Communications  
USNs have been established as one of the vital networking architectures in the 5G to expand system capacity and augment network coverage.  ...  However, intensive deployment of cells results in a complex interference problem. In this paper, we propose a distributed multi-domain interference management scheme among cooperative small cells.  ...  Thus, we present a simple and sub-optimal distributed approach to address the problem by the OFDMA scheduling based on the signal to interference plus noise ratio (SINR).  ... 
doi:10.1109/tcomm.2018.2851215 fatcat:mp5nb34cibdjfnulqtudraw6l4

Uplink Resource Allocation for Interference Mitigation in Two-Tier Femtocell Networks

Sung-Yeop Pyun, Woongsup Lee, Ohyun Jo
2018 Mobile Information Systems  
Given that femto BSs may be deployed with no cell planning, cross-tier interference generated from a number of macrocells and femtocells can cause severe problems.  ...  Simulation results at the system level verify that both proposed schemes can improve the average capacity of the femtocells, but the heuristic scheme outperforms the optimization scheme in terms of computational  ...  One simple yet powerful means of increasing the capacity of wireless networks involves decreasing the size of the cell because a small cell is perfectly adequate for providing high data rate services for  ... 
doi:10.1155/2018/9093139 fatcat:kkxx6iogzngbtaqn2nmcwo4pbq

Cooperative Wireless Cellular Systems: An Information-Theoretic View

Osvaldo Simeone
2011 Foundations and Trends in Communications and Information Theory  
In this monograph, the impact of cooperation on the performance of wireless cellular systems is studied from an information-theoretic standpoint, focusing on simple formulations typically referred to as  ...  In the third, only a subset of BSs is connected to a CP for joint encoding/decoding (clustered cooperation).  ...  Acknowledgments References Acknowledgments The work of O. Simeone has been partly supported by the U.S. National Science Foundation under Grant No. 0914899. The work of H.V.  ... 
doi:10.1561/0100000048 fatcat:hnwuvesbezcknl7zv5p4m7qppu

RMLNet—A Reliable Wireless Network for a Multiarea TDOA-Based Localization System

Yuan Xue, Wei Su, Dong Yang, Hongchao Wang, Weiting Zhang
2019 Sensors  
Furthermore, we implement the system to estimate the localization of the target node and evaluate its performance in practice.  ...  for the UWB localization system.  ...  System Implementation To evaluate our proposed RMLNet, we designed a system based on UWB, which can overhear signals and mark the recorded messages with a timestamp.  ... 
doi:10.3390/s19204374 fatcat:dcukvhpxtnc37bfunzagvecizq

A hybrid TIM-NOMA scheme for the SISO Broadcast Channel

Vaia Kalokidou, Oliver Johnson, Robert Piechocki
2015 2015 IEEE International Conference on Communication Workshop (ICCW)  
By superimposing users in the power domain, we introduce a two-stage decoding process, managing 'inter-group' interference based on the TIM principles, and 'intra-group' interference based on Successful  ...  Research on Blind Interference Alignment (BIA) and Topological Interference Management (TIM) has shown that optimal Degrees of Freedom (DoF) can be achieved, in the absence of Channel State Information  ...  Ratio of sum rate of hybrid scheme over sum rate of TDMA. For SNR values greater than 11dB the gain, of employing the hybrid scheme, is higher than 100%.  ... 
doi:10.1109/iccw.2015.7247210 dblp:conf/icc/KalokidouJP15 fatcat:bihfsjw2pjdv3h4u4uadxbk4ya

Point-of-care biosensor system

Arvind Sai Sarathi Vasan
2013 Frontiers in bioscience (Scholar edition)  
Dalmay et al. (77) developed a detection peroxidase where the peroxidase is the enzyme that method using microwave frequencies to study cell catalyzes the oxidation of a variety of organic  ...  First, prognostics is Table 4 provides a reference to the most used to estimate the RUL of a POC system at each time important frequency bands for POC wireless  ... 
doi:10.2741/s357 pmid:23277036 fatcat:kymehvonrfg33f26vd6nwef2dy
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