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Advances in Random Access protocols for satellite networks

Riccardo De Gaudenzi, Oscar del Rio Herrero
2009 2009 International Workshop on Satellite and Space Communications  
A fair comparative performance of state-of-the-art TDMA and CDMA RA schemes is provided together with a summary of their key performance results.  ...  to provide even better performance in the presence of received carrier power unbalance.  ...  Spread Aloha PLR with and without power unbalance. Fig. 6 . 6 Simulated Enhanced Spread Aloha performance with and without power unbalance.  ... 
doi:10.1109/iwssc.2009.5286351 fatcat:igetd32lvza3nfhmzicqb47z2i

ME-SSA: An advanced random access for the satellite return channel

G. Gallinaro, N. Alagha, R. De Gaudenzi, K. Kansanen, R. Muller, P. Salvo Rossi
2015 2015 IEEE International Conference on Communications (ICC)  
The scheme is an evolution of the E-SSA scheme proposed in [1], [2] that couples an asynchronous Spread Spectrum Aloha access with Successive Interference Cancellation (SIC) at the central Gateway (GW)  ...  The paper analyzes the performance of an advanced random access scheme for the return channel of a satellite communication link.  ...  The proposed scheme is an evolution of the Enhanced-Spread Spectrum Aloha (E-SSA) proposed in [1] and [2] .  ... 
doi:10.1109/icc.2015.7248429 dblp:conf/icc/GallinaroAGKMR15 fatcat:yyaijjlr4bhbdks5jxxsrlgpi4

A Comparison of MAC Protocols for Ultrasonic Intra-body Sensor Networks

G. Enrico Santagati, Mirko Gradillo, Francesca Cuomo, Tommaso Melodia
2014 Proceedings of the 9th International Conference on Body Area Networks  
We show that UsWB outperforms ALOHA in terms of throughput, while CSMA can achieve comparable performance under specific setups.  ...  In this paper, we compare the performance of the UsWB MAC protocol with two existing MAC protocols originally designed for wireless RF-based networks, ALOHA and Carrier Sense Multiple Access (CSMA).  ...  We enhanced the bit-level simulator in [2] with a more accurate model of the inter-symbolic interference (ISI).  ... 
doi:10.4108/icst.bodynets.2014.257024 dblp:conf/bodynets/SantagatiGCM14 fatcat:blxfjggzzbcppj3eapvoqeqidm

S-MIM field trials results

Romain Hermenier, Alessandro Del Bianco, Maria-Antonietta Marchitti, Thomas Heyn, Annamaria Recchia, Florian Collard, Marco Andrenacci, Gaeteno Mendola, Attilio Vaccaro
2014 International Journal of Satellite Communications And Networking  
Finally the validation of the system performances has been realized thanks to the use of a traffic emulator that can simulate a large population of Enhanced Spread Spectrum Aloha terminals.  ...  An intelligent transport system open platform integrating the S-band Mobile Interactive Multimedia messaging return channel protocol over satellite (based on Enhanced Spread Spectrum Aloha) has been developed  ...  Spread Spectrum Aloha (E-SSA, [4] [5] [6] ) that requires an asynchronous access.  ... 
doi:10.1002/sat.1069 fatcat:df7td3vmefdkjdfpmnb5hmwxrm

On the Modeling and Performance Assessment of Random Access with SIC [article]

Alberto Mengali, Riccardo De Gaudenzi, Cedomir Stefanovic
2018 arXiv   pre-print
ALOHA (IRSA), Coded Slotted ALOHA (CSA) and Enhanced Spread-Spectrum ALOHA (E-SSA).  ...  In this paper, we review the key figures of merit to assess the performance of advanced random access (RA) schemes exploiting physical layer coding, repetitions and collision resolution techniques.  ...  ALOHA (IRSA) [9] , Coded Slotted ALOHA (CSA) [10] and Enhanced Spread-Spectrum ALOHA (E-SSA) [11] , using the collision-channel model, the threshold-based model, and an accurate, semi-analytical (  ... 
arXiv:1801.06357v1 fatcat:w6jwjaotanecxltrgbmvzlo5pq

Slotted ALOHA land-mobile radio networks with site diversity

J.-P.M.G. Linnartz
1992 IEE Proceedings I (Communications Speech and Vision)  
Moreover, a technique to assess the throughput of ALOHA networks with multiple, geographically-separated base stations is presented and numerical results are given for uniform Poisson-distributed packet  ...  An analytical method for investigating slotted ALOHA land-mobile networks is presented.  ...  Although a fair comparison of the spectrum efficiency of such a system with a cellular ALOHA net cannot yet be given, a technique is proposed to assess the probability of successful reception of a data  ... 
doi:10.1049/ip-i-2.1992.0009 fatcat:mwyfw324q5ejrmrrsvzfvsnpbu

An overview of the IEEE 802.15.4a Standard

Eirini Karapistoli, Fotini-Niovi Pavlidou, Ioannis Gragopoulos, Ioannis Tsetsinas
2010 IEEE Communications Magazine  
CHIRP SYMBOLS CSS is a spread spectrum system that is similar to both direct sequence spread spectrum (DSSS) and UWB, offering some significant properties in addition to these systems due to the different  ...  For this reason, it is important that they provide good coexistence performance with respect to other systems using spectrum overlaid by the UWB bands.  ... 
doi:10.1109/mcom.2010.5394030 fatcat:6hgyvk35dzf6jpu47435ze2dva

AFDA: Asynchronous Flipped Diversity ALOHA for Emerging Wireless Networks With Long and Heterogeneous Delay

Lei Zheng, Lin Cai
2015 IEEE Transactions on Emerging Topics in Computing  
system performance in terms of throughput, packet loss ratio, and network admission region.  ...  The performance of AFDA has been evaluated by analysis and simulations.  ...  Similar to the CDMA system in cellular networks, SSA resolves packet collisions by taking advantage of spread-spectrum code.  ... 
doi:10.1109/tetc.2014.2373052 fatcat:7eqrkqup3rd5bhoqvfxvjopyvy

On-Demand Satellite Payload Execution Strategy for Natural Disasters Monitoring Using LoRa: Observation Requirements and Optimum Medium Access Layer Mechanisms

Lara Fernandez, Joan Adria Ruiz-de-Azua, Anna Calveras, Adriano Camps
2021 Remote Sensing  
In addition, a study is performed to compare different MAC protocols, and to assess the sensors density that can be achieved with each of these protocols, using the LoRa technology, and concluding the  ...  However, these monitoring systems are not optimal for an early detection and constant monitoring.  ...  Enhanced Spread Spectrum Aloha (E-SSA) This protocol [? ] combines the same spread-spectrum Aloha technique, as with SS-Aloha, with a recursive successive interference cancellation (R-SIC) algorithm.  ... 
doi:10.3390/rs13194014 fatcat:rfilycxbvvb4rggitsnxrrr77m

Performance Evaluation of LoRaWAN Communication Scalability in Large-Scale Wireless Sensor Networks

Alexandru Lavric, Valentin Popa
2018 Wireless Communications and Mobile Computing  
Thus, we need realistic models, enabling the proper assessment of the performance level.  ...  The present paper aims at assessing the performance level of the LoRaWAN technology by analyzing the number of packet collisions that can occur.  ...  Acknowledgments The infrastructure used in this work was supported by the project "Integrated Center for Research, Development and Innovation in Advanced Materials, Nanotechnologies, and Distributed Systems  ... 
doi:10.1155/2018/6730719 fatcat:7tnne6aqpzhkfca7bi76b3ksoi

Implementation of Multiple Access Techniques Applicable for Maritime Satellite Communications

Dimov Stojce Ilcev
2013 TransNav: International Journal on Marine Navigation and Safety of Sea Transportation  
CODE DIVISION MULTIPLE ACCESS (CDMA) The modern CDMA solution is based on the use the modulation technique also known as Spread Spectrum Multiple Access (SSMA), which means that it spreads the information  ...  The input and output signal-to-noise ratios are related as follows: (S/N)Output = Gp (S/N)Input (5) In the forward link, the CES transmits the spread spectrum signals spread with synchronized PN sequence  ... 
doi:10.12716/1001.07.04.08 fatcat:4zkr6ob735ejhe6o2tpjamsazm

High-Performance Long Range-Based Medium Access Control Layer Protocol

Yang Liu, Lei Liu, Jiacheng Liang, Jin Chai, Xuemei Lei, Hui Zhang
2020 Electronics  
To reduce data transmission delay and maximize the throughput of the system, the adaptive p-persistent CSMA protocol divides the channel load into four states and dynamically adjusts the data transmission  ...  Then, to reduce channel collisions significantly, the code division multiple access (CDMA) protocol is performed on different channel states.  ...  Further, the orthogonal spread spectrum code is embedded to realize CDMA transmission for enhancing the system's anti-interference capability.  ... 
doi:10.3390/electronics9081273 fatcat:p6deed3w2jdwnexrtiev4yfqli

Medium access control design for UWB communication systems: Review and trends

Luca De Nardis, Maria-Gabriella Di Benedetto
2003 Journal of Communications and Networks  
This work addresses MAC issues for UWB Communication systems. Key areas such as medium sharing, MAC organization, packet scheduling and power control are reviewed.  ...  In fact, spread spectrum systems with high processing gain do not experience significant performance increase by switching from Aloha to CSMA based on power measurement because of the lack of correlation  ...  It should be noted that this characteristic is typical of spread spectrum signals in general.  ... 
doi:10.1109/jcn.2003.6596620 fatcat:6swimfyt5jfd7pweqfll7igate

Underwater Acoustic Wireless Sensor Networks: Advances and Future Trends in Physical, MAC and Routing Layers

Salvador Climent, Antonio Sanchez, Juan Capella, Nirvana Meratnia, Juan Serrano
2014 Sensors  
In its variant, called aloha with carrier sensing (aloha-CS), prior to transmission, each node performs a clear channel assessment (CCA) in order to avoid disrupting any ongoing transmission.  ...  In direct-sequence spread-spectrum (DSSS) modulation, the original signal is spread over a wider spectrum in a ratio of L = W B (B is the original signal bandwidth, and W is the spread signal bandwidth  ... 
doi:10.3390/s140100795 pmid:24399155 pmcid:PMC3926587 fatcat:3ngjsezgofe55awjynox34adzm

IoT-Based Management Platform for Real-Time Spectrum and Energy Optimization of Broadcasting Networks

Rodney Martinez Alonso, David Plets, Ernesto Fontes Pupo, Margot Deruyck, Luc Martens, Glauco Guillen Nieto, Wout Joseph
2018 Wireless Communications and Mobile Computing  
We assess the performance and benchmark two IoT solutions (i.e., LoRa and NB-IoT).  ...  The IoT feedback loop power consumption represents less than 2% of the system power consumption.  ...  The experimental system was designed to perform field strength measurements at a height of 2.9 m above ground level.  ... 
doi:10.1155/2018/7287641 fatcat:76nfmjuuzzftzo7idwwk7svzca
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