Adaptation of spray phase to improve the binary spray and Wait routing in Delay Tolerant Networks

Iqbal, Shahid Md. Asif; Chowdhury, Alok Kumar

doi:10.1109/iccitechn.2012.6509723

Cited by 6 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to investigate the impact of our proposed message dropping policy and replication technique, we evaluate the performance of our proposed LAMeD (without incorporating any replication mechanism) and LARep (which includes LAMeD and our proposed message replication mechanisms). We also evaluate the performance of the variable-quota replication technique proposed by Iqbal and Chowdhury [57], namely the Adaptive Spraying Scheme-ADS for short.…”

Section: Evaluation Methodologymentioning

confidence: 99%

“…Iqbal and Chowdhury's [57] adaptive spraying scheme replicates messages until a certain "switch value" is reached (which is based on the number of remaining quota, L, and a chosen "reference value"), then shifts to single-copy replication. Miao et al [58] dynamically control the number of message copies based on the TTL.…”

Section: B Variable-quota Replicationmentioning

confidence: 99%

“…In Zhang et al's [54] Gossiping and timer threshold proposals for instance, the optimal p and timer threshold values may cause excessive transmission overhead in higher node population. The proposal by Iqbal and Chowdhury [57] also requires an optimal reference value in order to terminate message replication at the right time, which may still result in excess message copies in highly populated areas. n-Epidemic replicates messages according to n, i.e., the number of nodes in contact.…”

Section: Increased Metadata Overheadmentioning

confidence: 99%

“…Similarly, Gossiping and the time threshold approach require more adaptive parameters, i.e., p and the time threshold, respectively. Iqbal and Chowdhury [57] and Miao et al [58] also require an adaptive reference value and TTL threshold, respectively. Due to increased network dynamicity in higher node population, values that may be optimal under one network condition may not be suitable under another.…”

Section: Increased Metadata Overheadmentioning

confidence: 99%

See 3 more Smart Citations

The Impact of Message Replication on the Performance of Opportunistic Networks for Sensed Data Collection

et al. 2017

View full text Add to dashboard Cite

Opportunistic networks (OppNets) provide a scalable solution for collecting delay-tolerant data from sensors to their respective gateways. Portable handheld user devices contribute significantly to the scalability of OppNets since their number increases according to user population and they closely follow human movement patterns. Hence, OppNets for sensed data collection are characterised by high node population and degrees of spatial locality inherent to user movement. We study the impact of these characteristics on the performance of existing OppNet message replication techniques. Our findings reveal that the existing replication techniques are not specifically designed to cope with these characteristics. This raises concerns regarding excessive message transmission overhead and throughput degradations due to resource constraints and technological limitations associated with portable handheld user devices. Based on concepts derived from the study, we suggest design guidelines to augment existing message replication techniques. We also follow our design guidelines to propose a message replication technique, namely Locality Aware Replication (LARep). Simulation results show that LARep achieves better network performance under high node population and degrees of spatial locality as compared with existing techniques.

show abstract

Section: Evaluation Methodologymentioning

confidence: 99%

Section: B Variable-quota Replicationmentioning

confidence: 99%