Results 11 to 20 of about 1,499 (179)

Cooperative Retransmissions through Collisions [PDF]

open access: yes2011 IEEE International Conference on Communications (ICC), 2011
IEEE ICC 2011, Kyoto, Japan. 5 pages, 5 figures, 2 tables. Analog Network Coding, Retransmission, Access Point, WLAN, interference, collision, capacity, packet ...
Jalaluddin Qureshi   +2 more
openaire   +4 more sources

Forwarding by retransmission in IEEE 802.11 [PDF]

open access: yes2013 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS), 2013
This paper presents a cooperation-based retransmission mechanism for IEEE 802.11 networks called Forwarding By Retransmission (FBR). This mechanism aims at reducing the mean number of retransmissions in an infrastructure network, or it can be used to forward frames in a small ad hoc network.
Loiseau, Lucien   +2 more
openaire   +2 more sources

Analysis of NOMA-Based Retransmission Schemes for Factory Automation Applications

open access: yesIEEE Access, 2021
New use cases and applications in factory automation scenarios impose demanding requirements for traditional industrial communications. In particular, latency and reliability are considered as some of the most representative Key Performance Indicators ...
Eneko Iradier   +6 more
doaj   +1 more source

An Adaptive Strategy for an Optimized Collision-Free Slot Assignment in Multichannel Wireless Sensor Networks

open access: yesJournal of Sensor and Actuator Networks, 2013
Convergecast is the transmission paradigm used by data gathering applications in wireless sensor networks (WSNs). For efficiency reasons, a collision-free slotted medium access is typically used: time slots are assigned to non-conflicting transmitters ...
Pascale Minet   +2 more
doaj   +1 more source

Design of Rate-Compatible Parallel Concatenated Punctured Polar Codes for IR-HARQ Transmission Schemes

open access: yesEntropy, 2017
In this paper, we propose a rate-compatible (RC) parallel concatenated punctured polar (PCPP) codes for incremental redundancy hybrid automatic repeat request (IR-HARQ) transmission schemes, which can transmit multiple data blocks over a time-varying ...
Jian Jiao   +5 more
doaj   +1 more source

Stop criteria for retransmission termination in soft-combining algorithms

open access: yesJournal of Telecommunications and Information Technology, 2001
Soft-combining algorithms use retransmissions of the same codeword to improve the reliability of communication over very noisy channels. In this paper, soft-outputs from a maximum a posteriori (MAP) decoder are used as a priori information for decoding ...
Manora Caldera
doaj   +1 more source

Energy-Efficient Message Bundling with Delay and Synchronization Constraints in Wireless Sensor Networks

open access: yesSensors, 2022
In a wireless sensor network (WSN), reducing the energy consumption of battery-powered sensor nodes is key to extending their operating duration before battery replacement is required.
Sihao Li   +4 more
doaj   +1 more source

Retransmission DBTMA Protocol With Fast Retransmission Strategy to Improve the Performance of MANETs [PDF]

open access: yesIEEE Access, 2019
The Mobile Ad-hoc Networks (MANETs) are often visible to the exposed terminal problem and hidden terminal problem, which exist due to non-transitivity in media access control schemes. This affects the utilization of channel and throughput in media access control protocols, e.g., dual busy tone multiple access protocol (DBTMA).
M. Sivaram 0001   +4 more
openaire   +2 more sources

Delay QoS and MAC Aware Energy-Efficient Data-Aggregation Routing in Wireless Sensor Networks

open access: yesSensors, 2009
By eliminating redundant data flows, data aggregation capabilities in wireless sensor networks could transmit less data to reduce the total energy consumption. However, additional data collisions incur extra data retransmissions.
Hong-Hsu Yen   +2 more
doaj   +1 more source

On the existence of retransmission permutation arrays

open access: yesDiscrete Applied Mathematics, 2013
We investigate retransmission permutation arrays (RPAs) that are motivated by applications in overlapping channel transmissions. An RPA is an $n\times n$ array in which each row is a permutation of ${1, ..., n}$, and for $1\leq i\leq n$, all $n$ symbols occur in each $i\times\lceil\frac{n}{i}\rceil$ rectangle in specified corners of the array.
Ian M. Wanless, Xiande Zhang
openaire   +3 more sources

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