Results 161 to 170 of about 12,705 (218)
Some of the next articles are maybe not open access.
ACM SIGCOMM Computer Communication Review, 1974
THE ALOHA SYSTEM is composed of a related series of contracts and grants from a variety of funding agencies with principal support from ARPA, which deal with two main themes: computer communications (TASK 1), and computer structures (TASK 2).Under computer-communications there is work in (a) Studies on computer communications using radio and satellites,
openaire +3 more sources
THE ALOHA SYSTEM is composed of a related series of contracts and grants from a variety of funding agencies with principal support from ARPA, which deal with two main themes: computer communications (TASK 1), and computer structures (TASK 2).Under computer-communications there is work in (a) Studies on computer communications using radio and satellites,
openaire +3 more sources
Enhanced Slotted Aloha Protocols for Underwater Sensor Networks With Large Propagation Delay
, 2011 Recently underwater sensor networks (UWSN) attracted large research interests. Medium access control (MAC) is one of the major challenges faced by UWSN due to the large propagation delay and narrow channel bandwidth of acoustic communications used for ...
Kai Chen, Haibing Guan, Jianhua He
exaly +2 more sources
On the Characterization of Aloha in Underwater Wireless Networks
Mathematical and Computer Modelling, 2011 Standard analyses of wireless random access protocols that are available in the literature assume negligible propagation delay between any two nodes. This assumption holds good in reasonably short-range terrestrial RF (radio frequency) wireless networks.
Priyatosh Mandal, Swades De
exaly +2 more sources
IEEE Transactions on Automatic Control, 1994
Summary: Multicopy Aloha is a generalization of single-copy Aloha where multiple copies of a packet are transmitted without first learning whether the transmission of the first copy is successful or not. Different users in the system can transmit different number of copies.
Eric W. M. Wong, Tak-Shing P. Yum
openaire +3 more sources
Summary: Multicopy Aloha is a generalization of single-copy Aloha where multiple copies of a packet are transmitted without first learning whether the transmission of the first copy is successful or not. Different users in the system can transmit different number of copies.
Eric W. M. Wong, Tak-Shing P. Yum
openaire +3 more sources
On the Stability of Hybrid ALOHA
2007 41st Annual Conference on Information Sciences and Systems, 2007In this paper, we investigate the stability of a general N-user hybrid ALOHA system. Based on the multipacket reception model, the hybrid ALOHA protocol was proposed and the stability region in the case of N = 2 was presented. Utilizing the result for N = 2, in this paper, by means of stochastic dominance and mathematical induction, we find out the ...
Huahui Wang, Tongtong Li
openaire +2 more sources
2018 15th Workshop on Positioning, Navigation and Communications (WPNC), 2018
We propose a random access scheme named coded frameless ALOHA to completely eliminate the inherent error floor of the original frameless ALOHA, and show the optimized performance of the system. Coded frameless ALOHA uses erasure correcting codes, and transmitted packets are retrieved by an iterative process between successive interference cancellation ...
Shun Ogata, Koji Ishibashi
openaire +2 more sources
We propose a random access scheme named coded frameless ALOHA to completely eliminate the inherent error floor of the original frameless ALOHA, and show the optimized performance of the system. Coded frameless ALOHA uses erasure correcting codes, and transmitted packets are retrieved by an iterative process between successive interference cancellation ...
Shun Ogata, Koji Ishibashi
openaire +2 more sources
IEEE Transactions on Communications, 1984
In a recent paper, a generalization of the slotted ALOHA random access scheme is considered in which a user transmits multiple copies of the same packet. In frequency diversity ALOHA, multiple copies of the same packet are simultaneously transmitted on different channels.
Szu-Lin Su, Victor O. K. Li
openaire +1 more source
In a recent paper, a generalization of the slotted ALOHA random access scheme is considered in which a user transmits multiple copies of the same packet. In frequency diversity ALOHA, multiple copies of the same packet are simultaneously transmitted on different channels.
Szu-Lin Su, Victor O. K. Li
openaire +1 more source
Performance Analysis for a Stabilized Multi-Channel Slotted ALOHA Algorithm [PDF]
, 2003 We study slotted ALOHA with multiple random access channels, the so called multi-channel ALOHA (MC-ALOHA). It is well known that single-channel ALOHA (SC-ALOHA) is unstable. Not surprisingly, MC-ALOHA is also unstable.
Dongxu Shen, V O K Li
exaly +2 more sources