ACM SIGCOMM Computer Communication Review - Special twenty-fifth anniversary issue. Highlights from 25 years of the Computer Communication Review
Proceedings of the 10th annual international conference on Mobile computing and networking
Versatile low power media access for wireless sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Efficient gathering of correlated data in sensor networks
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
Capacity of multi-channel wireless networks: impact of number of channels and interfaces
Proceedings of the 11th annual international conference on Mobile computing and networking
Interference-aware fair rate control in wireless sensor networks
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
Efficient interference-aware TDMA link scheduling for static wireless networks
Proceedings of the 12th annual international conference on Mobile computing and networking
ATPC: adaptive transmission power control for wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
A funneling-MAC for high performance data collection in sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
RCRT: rate-controlled reliable transport for wireless sensor networks
Proceedings of the 5th international conference on Embedded networked sensor systems
Nonthreshold-Based Event Detection for 3D Environment Monitoring in Sensor Networks
IEEE Transactions on Knowledge and Data Engineering
Underground coal mine monitoring with wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
Virtual surrounding face geocasting in wireless ad hoc and sensor networks
IEEE/ACM Transactions on Networking (TON)
Rendered path: range-free localization in anisotropic sensor networks with holes
IEEE/ACM Transactions on Networking (TON)
IEEE Communications Magazine
Computer Networks: The International Journal of Computer and Telecommunications Networking
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In this paper, we study the trade-off between network throughput and fairness in a multi-channel enabled wireless sensor network (WSN). Traditional approaches attempt to solve the two problems in an isolated manner without a joint design. Although there are schemes aiming to improve either throughput or fairness, respectively, our empirical studies show that solutions to these two problems cannot be simply combined to achieve better throughput and fairness simultaneously. Away from the traditional belief, the number of channels in WSNs with Telosb sensor nodes operating at 2.4GHz band can be up to 83 and the orthogonal channels can be up to 27. The switching overhead in terms of time and energy cost is relatively small. The averaged switching time for a sender is about 0.34ms and the additional energy consumption caused by channel switching is no more than 2% when 10^4 packets with 43bytes of each are sending out continuously. Furthermore, we observe a buffer wall phenomenon which is one of the main reasons causing network throughput degradation and unfairness. To strike a better trade-off between the network throughput and fairness, we design a novel multi-channel assignment algorithm, targeting at maximizing the minimal data sending rate. The key idea of the proposed algorithm is to level down the buffer wall so that the buffer usage of nodes can be evenly distributed. As such, the bandwidth of bottleneck nodes can be fully utilized and the unfairness due to the node locality can be removed. We prove that the achieved data sending rate is no less than 4/9 of the optimal rate in theory. Our experimental results based on both chain and uniformly random sensor deployment topologies show that the minimal data sending rate can be improved by up to 100% comparing with the existing work TMCP.