Bandwidth-Aware High-Throughput Routing With Successive Interference Cancelation in Multihop Wireless Networks

Abstract

Successive Interference Cancellation (SIC) is a new physical layer technique that enables the receiver to decode composite signals from multiple transmitters sequentially. The introduction of SIC improves the path bandwidth. In this paper, we focus on the design of bandwidth-aware routing protocol with SIC, aiming at achieving high overall end-to-end throughput. We develop an SICable condition for a routing protocol to identify beneficial SIC opportunities that improve spatial reuse without impacting transmission quality. To further explore the benefits of SIC, we formulate the problem of SIC-aware path bandwidth computation as a linear program, and design a distributed heuristic algorithm with polynomial complexity. A routing metric capturing the benefit of SIC in terms of bandwidth and network resource is proposed, by which our routing protocol can choose a path satisfying the bandwidth requirement of the current flow and reserving more network resource for the subsequent ones. Simulation results show that our routing protocol achieves significant gains in network throughput and SIC ratio compared with other routing protocols.

Successive Interference Cancellation Based Throughput Optimization for Multi-Hop Wireless Rechargeable Sensor Networks

“…It is not difficult to find that all the variables in OPT S are transferred from the variables in OPT raw . The constraints (11) become (16), which is a linear except, through reformulation (i.e., by change-of-variable technique), but there is still a quadratic term η 2 i . In Section 4.4, we will present how to fit the parabola by a useful technology and show a feasible near-optimal solution to OPT raw within a feasible target error.…”

“…When the receive node receives a set of signals from several transmit nodes, it can iteratively decode the received signals if the remaining strongest signal meets the signal-to-interference noise ratio (SINR) threshold (i.e., decodes the strongest signal and views the other signals and the noise as a noise signal). For example, in [16], a heuristic algorithm is proposed for multi-hop wireless network, and Liu et al showed a bandwidth-aware high-throughput protocol with SIC. In [17], Jiang et al provided a cross-layer optimization framework with SIC for multi-hop wireless network and presented that the throughput increased about 47%.…”

Efficient Routing by Power Optimization using Minimum Hop Count Routing Protocol in WSN

“…Author [1] develops a technique to analytically compute the offered bandwidth of a given path with sic. Author additionally styles a distributed heuristic algorithmic rule so the bandwidth is calculable by a distributed routing protocol.…”

Full-Duplex Multi-Hop Wireless Networks Optimization with Successive Interference Cancellation

“…For example, in [21], the authors proposed a cross-layer optimization framework for multi-hop wireless networks with SIC, and showed that, compared with the scheme without SIC, the network throughput can be increased about 47%. In [22], the authors proposed a heuristic algorithm for routing in multi-hop wireless networks, and getting a bandwidth-aware high-throughput protocol with SIC. Simulation results show the proposed algorithm has about 29–62% higher throughput than the compared algorithm.…”