Performance Analysis of Spectrum Sensing With Multiple Primary Users

Zhao, Bo; Chen, Yunfei; He, Chen; Jiang, Lingge

doi:10.1109/tvt.2012.2183010

Cited by 20 publications

(29 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We assume that λ hda is the arrival rate of handoff sessions in idle mode. Discussion: An interesting observation is that t phh_busy and t phh_idle_new have the same formulas, i.e., (5) is the same as (6). The reasons are as follows.…”

Section: ) T Pnhmentioning

confidence: 94%

“…Specifically, CHT allows one to derive key network parameters such as new call/session blocking probability, handoff call/session blocking probability [2], etc. It has been widely used for the evaluation of the mobile routing strategy [3] and resource allocation [4], and models for a data charging system [5], spectrum sensing [6], and minimizing unnecessary handoffs [7], [8]. The CHT depends on UE mobility, which can be characterized by CRT, which is determined by cell size, UE speed, and movement direction.…”

mentioning

confidence: 99%

“…In CS cellular networks, extensive studies have been carried out for handoff performance in terms of CHT, CRT, and handoff rate [6]- [26]. For the sake of convenience and analytical tractability, a common assumption in these studies is that the CHT and/or CRT is exponentially distributed.…”

mentioning

confidence: 99%

“…However, the work [6]- [26] developed for CS cellular networks cannot be applied to PS cellular networks directly, due to the following reasons.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Modeling and Analysis of Channel Holding Time and Handoff Rate for Packet Sessions in All-IP Cellular Networks

Ren

Weng

et al. 2017

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

Abstract-It is essential to model channel holding time (CHT), cell residence time (CRT), and handoff rate for performance analysis and algorithm evaluation in mobile cellular networks. The problem has been extensively studied in the past for circuitswitched (CS) cellular networks. However, little research has been done on packet-switched (PS) cellular networks. Unlike that a call occupies a dedicated channel during its whole lifetime in CS networks, an active session in PS networks occupies and releases channels iteratively due to discontinuous reception (DRX) mechanism. In this paper, we investigate the key quantities in PS cellular networks. We present a set of comprehensive new models to characterize the quantities and their relationship in PS networks. The models shed light on the relationship between CHT and CRT and handoff rate. The analytical results enable wide applicability in various scenarios and therefore have important theoretical significance. Moreover, the analytical results provide a quick way to evaluate traffic performance and system design in PS cellular networks without wide deployment, which can save cost and time.Index Terms-Cell residence time (CRT), channel holding time (CHT), handoff rate, mobility, modeling and analysis, packet session.

show abstract

Section: ) T Pnhmentioning

confidence: 94%

mentioning

confidence: 99%

mentioning

confidence: 99%

“…However, the work [6]- [26] developed for CS cellular networks cannot be applied to PS cellular networks directly, due to the following reasons.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Modeling and Analysis of Channel Holding Time and Handoff Rate for Packet Sessions in All-IP Cellular Networks

Ren

Weng

et al. 2017

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

show abstract

“…Generally, the current related works could be sorted into two categories: i) consider the On/Off states of users as independent and identically distributed (i.i.d) over the spatial domain [1], [2]; ii) regularize and correlate the On/Off patterns based on experimental data [3], [4]. Due to wireless interference, the multiple wireless users may not communicate simultaneously, resulting in correlated user behaviors across both spatial and temporal domains, which was discussed in [4].…”

Section: Introductionmentioning

confidence: 99%

Study of user On/Off patterns in random networks

Han

Cui

2013

2013 IEEE Global Conference on Signal and Information Processing

View full text Add to dashboard Cite

This paper studies the On/Off patterns of users in large-scale ad hoc networks, with both the packet arrivals at each user and the user locations following Poisson distributions. We derive the probability of an arbitrary user being in On state at any time to learn the average spectrum usage in temporal and spatial domains. The derived results are useful to estimating the spectrum utility in large-scale random networks. Simulation results are provided to validate our analysis.Index Terms-Large scale random networks, On/Off patterns, M/M/1/0 queue.

show abstract

Optimal multiband joint detection in cognitive radio networks with the Taguchi method

Liu

2013

Int J Communication

View full text Add to dashboard Cite

SUMMARYThis paper studies multiband joint detection in cognitive radio networks with the Taguchi method. At the fusion center, linear fusion rule is adopted to collect the observations from distributed secondary users. We aim to achieve maximum aggregate throughput with limited aggregate interference. The problem is challenging due to its nonconvexity and high computational complexity to find the global optimum. Existing works attempt to convert the problem into convex optimization problem. In this paper, the Taguchi method is employed to estimate the gradient of the aggregate throughput, determine the optimal thresholds of the energy detectors and combination weights of the linear fusion rule regardless of convexity. To optimize thresholds and linear weights simultaneously, we employ newly defined variables to represent the changing ranges of detector thresholds when we search for optimal linear weights. In addition, the sensing duration is another factor to be optimized in the Taguchi method. The simulation results show that the proposed method is efficient and applicable for all classes of cognitive radio without considering convexity. The optimization performance is considerably improved. Moreover, the Taguchi method is insensitive to parameter initialization, which provides a relatively robust output. Copyright © 2013 John Wiley & Sons, Ltd.

show abstract

Performance Analysis of Spectrum Sensing With Multiple Primary Users

Cited by 20 publications

References 17 publications

Modeling and Analysis of Channel Holding Time and Handoff Rate for Packet Sessions in All-IP Cellular Networks

Modeling and Analysis of Channel Holding Time and Handoff Rate for Packet Sessions in All-IP Cellular Networks

Study of user On/Off patterns in random networks

Optimal multiband joint detection in cognitive radio networks with the Taguchi method

Contact Info

Product

Resources

About