Random Access with Multi-Packet Reception

Dua, A.

doi:10.1109/twc.2008.070010

Cited by 31 publications

(26 citation statements)

References 14 publications

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“…Since perfect power control mechanism [9] is adopted for our model, all the packets are presumed to be received with the same mean power at the CR base station. Therefore, each CR user adjusts its transmit power according to the mean power in order to eliminate the near-far effect [4], [7].…”

Section: Channel Modelmentioning

confidence: 99%

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A slotted ALOHA-Based random access cognitive radio network with capture effect in Rayleigh fading channels

Bayrakdar

Atmaca

Karahan

2013

2013 International Conference on Electronics, Computer and Computation (ICECCO)

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This paper proposes a Slotted ALOHA-Based cognitive radio (CR) network and investigates the throughput of both CR and overall network in the presence of Rayleigh fading. We consider a network that comprises of two different classes of users, primary users (PUs) and CR users. PUs are licensed users and access the channel at any time utilizing Time Division Multiple Access (TDMA) as a Medium Access Control (MAC) technique. CR users are non-licensed users and can access the channel by exploiting Slotted ALOHA as a random access scheme when it is not occupied by the PUs. This study has also revealed that the overall channel utilization can be improved by exploiting the spectrum holes without interfering with the PUs' transmissions.

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Section: Channel Modelmentioning

confidence: 99%

“…According to this method, if a received packet has a power which is more than the capture ratio times the sum of the other packets' powers and thermal noise, it captures the receiver and this means that the packet is successfully received [2], [4]. So, the capture probability expression is simply defined as follows [9],…”

Section: Capture Modelmentioning

confidence: 99%

A slotted ALOHA-Based random access cognitive radio network with capture effect in Rayleigh fading channels

Bayrakdar

Atmaca

Karahan

2013

2013 International Conference on Electronics, Computer and Computation (ICECCO)

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“…While other workers have addressed SIC in wireless environments [10], here we include the power randomization effect introduced by mobility. The physical environment is assumed to be ideal (although some other workers have considered multiple packet reception under Rayleigh fading [9].) Furthermore receivers are assumed to be able to decode error-free up to the ideal rate.…”

Section: Discussionmentioning

confidence: 99%

Free Space Attenuation and Throughput in a Wireless Mobile Network Using Successive Interference Cancellation with Power Randomization

Tunnicliffe

2013

2013 UKSim 15th International Conference on Computer Modelling and Simulation

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-Successive Interference Cancellation (SIC) with Power Randomization (SPR) is simulated for a fully meshed wireless network whose nodes may be stationary and equidistant or mobile within a circumscribed area. When the power level differences are just sufficient to allow multi-user detection with equidistant nodes, the introduction of mobility is found to reduce throughput. However when power level differences are dilated, the adverse effect on throughput is not only reduced but reversed when considering group averages over long intervals.

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“…Because the evolution of terminals' queuing processes over time is coupled with each other, analytical models, even approximate ones, that have been developed have mostly suffered from the curse of dimensionality. As good approximations, there are some analytical queuing models for buffered terminals in S-ALOHA systems in [15]- [17]. However, none of these models considers correlated traffic arrivals or window-based backoff with retry limit.…”

Section: Introductionmentioning

confidence: 99%

Queuing Performance of Multichannel S-ALOHA Systems With Correlated Arrivals

Seo

Leung

2011

IEEE Trans. Veh. Technol.

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Abstract-In this paper, we examine the queuing performance of terminals in a multichannel centralized S-ALOHA system with a finite terminal population and finite queue size in each terminal, employing a uniform backoff (UB) algorithm with retry limit for collision resolution. The performance evaluations focus on uplink traffic from web browsing, which is modeled as a Markovmodulated Bernoulli process with correlated arrivals. We analyze the system performance in terms of system throughput, mean queue length, mean delay, the probability that a packet is dropped by retry limit, the probability that a packet is blocked by a full queue, and the mean and variance of packet retransmission time, in relation to the source correlation, number of channels, window size, and retry limit. For comparison, we also consider bufferless terminals with correlated arrivals. In addition, we evaluate by simulations the performance of terminals with finite queue size when they have perfect knowledge of the backlog size. Results from our study allow the parameters of the UB algorithm to properly be chosen to meet the access-level quality-of-service requirements.Index Terms-Access protocol, algorithm design and analysis, cellular networks, communication system signaling, multiaccess communication.

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Random Access with Multi-Packet Reception

Cited by 31 publications

References 14 publications

A slotted ALOHA-Based random access cognitive radio network with capture effect in Rayleigh fading channels

A slotted ALOHA-Based random access cognitive radio network with capture effect in Rayleigh fading channels

Free Space Attenuation and Throughput in a Wireless Mobile Network Using Successive Interference Cancellation with Power Randomization

Queuing Performance of Multichannel S-ALOHA Systems With Correlated Arrivals

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